Spectra Precision
Dual Grade Laser
Dual Grade Laser
GL1425C-12
Spectra GL1425C-12 Dual Slope Grade Laser with HL760 - TENTHS Package
Horizontal / Vertical Red Beam Laser - Rechargeable Batteries
GL1425C-12 with HL760 Receiver and RC1402N Remote, TENTHS-Rod, Tripod and Large System Case
Dial grade on both axes and read it on the HL760, with the RC1402 remote or your phone. Accurate to 1/16″ at 100 ft across a 2,600 ft working diameter.
Questions? Talk to someone who uses these: 1-877-866-5721
±1/16″
At 100 ft
2,600 ft
Working diameter
Dual grade
X and Y axes
±15%
With pre-tilt
IP66
Dust & water
45 hrs
NiMH runtime
300/600/900
Rotation rpm
5 years
Laser warranty
Drainage that actually drains
Type the grade in on both axes and the laser holds it. No distance-versus-height math at the stake.
Match the grade that is already there
GradeMatch measures the slope between two points for you, so tie-ins come out right the first time.
Built for the jobsite it lives on
Survives a 3 ft drop onto concrete and a 5 ft tripod tip-over, sealed to IP66.
The pairing
The laser sets the grade. The HL760 reads it.
GL1425C
It puts the grade up.
- Dual grade. Enter a grade on the Y and the X axis; it self-levels to both.
- 1/16″ at 100 ft level, 1/8″ at 100 ft on grade. 300 / 600 / 900 rpm.
- Typically ±9% per axis, up to ±15% with pre-tilt.
- Bluetooth built in for the Spectra Precision Laser Remote app, plus the RC1402 remote.
- HI alert: bump the tripod and it stops and warns you, instead of letting you work off a bad setup.
- A 3 ft drop onto concrete, a 5 ft tripod tip-over, sealed to IP66.
HL760
It tells you the number.
- A 5″ reception height with a digital readout: the exact distance from on-grade, not just a beep.
- Reads in mm, cm, feet, inches or fractional inches.
- Ships with its C70 rod clamp.
- Two-way radio with the laser. That is what makes GradeMatch and PlaneLok possible.
What the two of them do that neither does alone
GradeMatch measures an existing grade between two points, typically up to 260 ft, and sets the laser to it. PlaneLok locks the beam onto a receiver at a fixed point so wind, vibration and temperature cannot move your grade. Both need the laser and the receiver talking over radio, and that pairing is already done for you in this kit.
What you get
What is in the GL1425C-12
Laser
The GL1425C dual grade laser with the B10 rechargeable pack and CH10 charger.
Receiver
The HL760 digital readout receiver with its C70 clamp.
Tripod and rod
An aluminum tripod and a 15 ft grade rod in tenths.
Control
The RC1402 remote, plus Bluetooth for your phone.
Everything in the large system case.
The technical edge
Grade you never have to calculate
Dual grade
Type a grade in each axis; the laser self-levels to it.
GradeMatch
Measures the slope that is already there between two points.
PlaneLok
Locks the beam onto a fixed receiver so drift cannot creep in.
Less math at the stake, fewer re-shoots.
What sets it apart
Two ways to control your laser
1 · Your phone
The Spectra Precision Laser Remote app over Bluetooth sets grade, speed and mask from your pocket.
2 · The RC1402 remote
Does everything the keypad does, from up to 330 ft, and works when your phone is flat or you are gloved up.
Most crews end up using both.
Free Same-Day Shipping · Order by noon central and it ships today.
Call 1-877-866-5721 for express and next-day options. · Five year laser warranty
Call 1-877-866-5721 for express and next-day options. · Five year laser warranty
The GL1425C-12 package. GL1425C Dual Grade Laser Transmitter / HL760 Laserometer Laser Receiver with C70 Rod Bracket / 105516 Vertical Adapter for HL Receiver / RC1402N Radio Remote Control / Smartphone Bluetooth Remote Control / Free App / GR151 15-Foot Measuring Rod with measurements in TENTHS / Q104025 Aluminum Tripod.
Overview
One Laser. Level, Grade and Plumb.
The automatic self-leveling Spectra Precision® GL1425C dual grade laser is the most rugged, cost-effective laser that does three jobs—level, grade, and vertical alignment. Even in harsh jobsite conditions, the GL1425C delivers consistently reliable and accurate performance, enabling you to work faster and smarter.
The GL1425C has Bluetooth built in so it can work with the Spectra Precision Laser Remote App and eliminate the cost of the remote control. The laser can be controlled with your smartphone.
The rugged GL1425C laser can withstand drops of up to 3 feet onto concrete and tripod tip overs up to 5 feet. This strength, combined with full weatherproofing and dustproofing, reduces downtime and lowers repair costs over the life of the product.
The GL1425C has options for receivers. The advanced HL760 Digital Readout receiver provides automatic Grade Match which allows measurement of unknown grade values between two points over unknown ground and eliminates time consuming slope calculations. PlaneLok automatically locks on to an existing elevation or vertical alignment point which eliminates all drift or possibility of error due to improper calibration or weather. The CR700 receiver is also an option when a machine mounted display elevation is required.
Grade Match measures and displays the existing grade over unknown ground. As a consequence it eliminates time consuming and error prone calculations
A standout feature of this GL1425C-12 package is the HL760 receiver, a proven grade receiver trusted by contractors for both rod-mounted and machine-mounted applications. The HL760 is extremely rugged and jobsite-ready, featuring a large 5-inch reception height that makes it easy to catch the beam quickly and stay on grade. Its wide 270° reception area allows fast positioning and reliable performance when moved between backhoes, excavators, box blades, or skid steer loaders. Built to handle harsh conditions, the HL760 delivers the durability and flexibility contractors expect for everyday grading and excavation work.
What’s in the Box
What You Receive.
Spectra Precision GL1425C-12 Dual Grade Laser TENTHS Package INCLUDES
GL1425C Dual Grade Laser Transmitter
Dual grade on X and Y, level and vertical. 1/16 in at 100 ft, 300/600/900 rpm, IP66, five year warranty.
HL760 Laserometer Laser Receiver with C70 Rod Bracket
105516 Vertical Adapter for HL Receiver
Holds the HL760 for vertical and layout work.
RC1402N Radio Remote Control
Two-way radio remote. Does everything the keypad does, from up to 330 ft.
Smartphone Bluetooth Remote Control / Free App
Bluetooth is built in: the Spectra Precision Laser Remote app on your own phone runs the laser.
GR151 15-Foot Measuring Rod with measurements in TENTHS
Read cut and fill straight off the rod.
Q104025 Aluminum Tripod
Sturdy, lightweight aluminum with telescopic legs and a 5/8 x 11 threaded post. The only tripod that fits inside the large system case.
NiMH Rechargeable Batteries - B10
10,000 mAh NiMH, typically 45 hours. Fits only one way round.
CH10 Worldwide Charger
Charges the pack in the laser or out of it, typically under ten hours.
Large System Carrying Case 128995-00
The All in One case: laser, receiver, rod and tripod travel together.
Multi Language CD, Quick user guide and Safety Instructions
GL1425C-12
Why this kit
The receiver is what unlocks GradeMatch and PlaneLok.
The laser-only GL1425C-BL and the GL1425C-BCC cost less because there is no receiver in the box. But GradeMatch and PlaneLok only work when the laser and the receiver talk to each other over radio, and that takes an HL760 or a CR700. This kit already has the HL760, paired and ready. And the rod and tripod travel inside the large system case.
Working off a machine, not just a rod?
The GL1425C-1 is the same setup with the CR700 in place of the HL760.
$3,395.00
See the GL1425C-1 →Applications
Where This Laser Earns Its Keep.
Spectra GL1425C APPLICATIONS
Leveling concrete forms and footers
Concrete forms and footings set off one plane, all day.
General construction vertical alignment and plumb such as anchor bolt and form alignment
Plumb and vertical lines for anchor bolts and forms.
“Over the top” sewer and storm drain pipe installations
Grade set from above the trench for sewer and storm pipe.
Sports fields, tennis courts and driveways
Dual grade for drainage on courts, fields and drives.
Grading and excavating
Cut and fill read off the rod as a number.
Steep slope road embankments and ditch banks
Steep grades up to 15% with pre-tilt.
Ramps and drainage
Fall set on both axes at once.
Applications from our GL1425C listing and Spectra’s GL1425C datasheet.
VIDEO
See It On the Job.
Spectra’s introduction and our own GL1425C training. Pick one and it plays here.
Spectra Precision’s own introduction to the GL1425C and the Laser Remote app.
GRADE
Grade, Three Ways — Type It, Step It or Snap It.
The GL1425C takes a grade in each axis and self-levels to it. Spectra’s user guide gives three ways to get the number in, from the keypad, the RC1402 or the app.
⌨︎
Digit Select — type the exact grade
Press M, choose Grade, press E. The arrows move the cursor and change each digit; tap Manual to jump between Y and X; press E to set it. Flashing “A” symbols mean it is still leveling to your grade.
M › GRADE › E⇅︎
Step & Go — nudge it
Hold an arrow for about three seconds and the grade steps up or down: Up and Down for Y, Left and Right for X. Let go and the laser re-levels to the new value.
HOLD AN ARROW⚡︎
Quick Change — whole percents
Press Up and Down together (or Left and Right) and that axis jumps to 0%, then changes in 1% steps. The fast way to rough in a grade.
BOTH ARROWS∟︎
Steeper than 9%
Above about 9% the rotor runs out of travel; the laser beeps and shows which way to tilt. Raise or lower one tripod leg (or use the M401 tilting base) to reach up to ±15%.
PRE-TILTThe number almost nobody lists
Grade range: ±9% per axis, ±15% with pre-tilt
Up to about 9% the GL1425C reaches the grade on its own. Past that the rotor head runs out of travel; Spectra’s user guide says to tilt the laser toward the slope with one tripod leg (or the M401 tilting base), and then it reaches ±15% on each axis.
THE RECEIVER
The HL760 Gives You the Number.
Spectra HL760 Machine or Rod Mounted Laser Receiver
INCLUDED in GL1425C-12 Package
Highly versatile receiver for basic and advanced leveling and aligning applications
Works with GL1425C in automatic Grade Match and PlaneLok applications
HL760 Laserometer Laser Receiver KEY FEATURES:
- LARGE 5-INCH RECEPTION HEIGHT
- Digital readout of elevation
- Exact distance from on-grade displayed
- Anti-strobe sensor to prevent false reading from jobsite strobe lights
- Withstands a drop of up to 10-foot
Fingerprint function - detects only the laser beam of the paired transmitter
User Benefits:
- No need to go “on-grade” to measure
- Saves considerable time
- Reduces rework by allowing remote monitoring
- Increases reliability, accuracy and durability
GL1425C when used with the HL760 DRO receiver, several advanced features can be utilized:
Grade Match: Wireless communication between the HL760 receiver and the transmitters provide automatic Grade Match which connects different elevations and will actually calculate and display grade values between two points when using the GL1425C.
PlaneLok: For applications that require maximum stability and accuracy is available on the horizontal Y-axis and in both vertical planes. PlaneLok automatically locks the beam on the DRO receiver and keeps it on-grade, reducing typical environmental factors that may induce an error.
PlaneLok for vertical alignments provides quick, accurate set-up and easy control.
Also provides the ability to quickly set up a vertical plumb or slope reference.
Spectra HL760 Digital Readout Receiver SPECIFICATIONS
| HL760 | Included in this kit |
| Digital readout units | mm, cm, feet, inches, fractional inch |
| Reception height | 5-inches |
| Six On-grade sensitivities | Ultra fine ~1/32 inch Super fine ~1/16 inch Fine ~1/8 inch Medium ~1/4 inch Coarse ~1/2 inch Calibration Mode ~1/64 inch |
| Battery Life (2 AA) | 60+ Hours continuous operation |
| Auto shut-off | 20 minutes / 24 hours |
| Operating Temp | -4°F to 122°F |
| Dust and Waterproof | Yes - IP67 |
| Weight | 13.1 oz |
| Warranty | 3 Years "No Excuses" |
Spectra Precision RC1402N Remote Control - INCLUDED in GL1425C-12 Laser Package
The Spectra RC402N remote control mirrors the basic functionality of the laser keypad and offers additional features using the M and E buttons. This RC402N Remote allows you to control the laser features and functions up to 330-feet away from the laser. Allowing for one person operation in many jobsite applications.
Spectra RC1402N Remote Controls...
Manual Grade
Rotation Speed
Scan Mode Pre-Selected scan sizes
5°, 15°, 45°, 90°, 180°, 0°
Automatic Grade Match
Automatic Plane Lok
Line Scan (Vertical Setup)
Beam Plunge (Vertical Setup)
Mask Mode
Wireless Remote Specifications
Operating Range
330-feet
Power Source
2 x 1.5V AA Alkaline Batteries
Battery Life
130 Hours
Yes - IP66
Paired with the GL1425C, the receiver works across the laser’s 2,600 ft working diameter; its radio link to the laser reaches up to 330 ft.
Hover any photo to enlarge it.
It is not locked to this laser, or to this brand
It reads any red beam rotary laser you own.
The HL760 is a red beam receiver. Put it in front of any red beam rotary laser and it reads the beam, whatever badge is on the case.
What changes is the radio. Paired with the GL1425C, the two talk to each other, and that is what turns on GradeMatch and PlaneLok. With any other laser you simply read grade the ordinary way. So the money goes in once.
Range and accuracy, together
One setup for the whole site — and the grade is still right at the far edge.
The GL1425C works across a 2,600 ft working diameter. Set it once and cover ground that would otherwise cost you three or four moves.
And it holds 1/16 in at 100 ft level and 1/8 in at 100 ft on grade, while the HL760 reads down to about 1/32 in on its finest setting.
That combination is the whole point. Range without accuracy is just a long way to be wrong.
Why fewer setups means fewer mistakes
Every time you move a laser you re-establish your height of instrument, and every move is a chance to be a fraction out. Cover more from one position and you carry one benchmark across the job.Accurate the first time is cheaper than accurate the second time.
IN THE MANUAL
Six Things in the Owner’s Manual Most Sellers Never Mention.
⚠︎
It stops itself when the tripod gets bumped
Once the HI alert arms (5 minutes by default, or 30 seconds), a change of about 1/8″ stops rotation, turns the beam off and sounds a warning. Error 120 on the screen.
HI ALERT🌡︎
It re-checks itself when the temperature changes
A temperature reference check runs when you enter a grade and again after a 9°F change inside the laser, so a cold morning and a hot afternoon read the same.
TEMP CHECK⎗︎
It remembers yesterday’s grade
By default it starts on the last saved grade. Sharing the laser between crews? Set Settings › Start Grade › 0 Grade so nobody inherits someone else’s number.
START GRADE◼︎
It can blank out windows and other crews
Mask mode turns the beam off in up to three of the four quadrants: no false readings off glass, no beam in a neighbor’s receiver.
MASK MODE⏸︎
It can pause at lunch without losing the setup
Hold Manual for 3 seconds: leveling and beam stop, settings stay, and the HI alert keeps watching. Hold it again to resume.
STANDBY⚖︎
Sensitivity can be set for wind
Low for wind and vibration, Middle (default), High for calm days. Fewer nuisance re-levels on a gusty site.
SETTINGSWorth Knowing
Before It Comes Out of the Case.
Worth knowing before it comes out of the case
It always wakes up level
Every power-on starts in automatic self-leveling, and it decides by itself whether it is sitting horizontal or on its side for vertical.
It works stood on its side
Lay it on its stands and it detects vertical: Y self-levels plumb, the arrows walk the line left and right, and Line Scan centres it for you.
The casting shows you which way each axis runs
Slope indication marks moulded into the housing show positive Y and positive X, so you can line the laser up with your fall before you touch a button.
Spectra GL1425C Key FEATURES and BENEFITS
GL1425C is dual grade plus horizontal and vertical. Simple, accurate dial in grade up to ±9% per axis, ±15% with tilt adjustment
Up to 2,600 ft working diameter which increases productivity by reducing need for multiple set-ups on a large job site
Fully automatic self-leveling in both grade axes and horizontal, with automatic vertical setup which provides fast, accurate setup in all applications
Fast setup, minimal training time and automatic self-leveling minimize operating costs and boost productivity
Highly rugged design and patented lighthouse seal protects the rotor head and glass and offers superior drop and weather protection for reduced downtime
2-way full function remote control allows grade changes to be made from anywhere on the jobsite
Temperature calibrated for high accuracy over wide temperature changes
IP66 dust and water-proof to withstand harsh jobsite conditions
Customizable with choice of HL760 or CR700 receivers
GL1425C standard with HL760 DRO Receiver
GL1425C-14-14 standard with CR700 DRO Receiver
Mask mode eliminates interference from other crews on the jobsite
Automatic Grade Match and PlaneLok
SPECIFICATIONS
Spectra Precision GL1425C Dual Grade Laser SPECIFICATIONS
From our GL1425C listing, checked against Spectra’s GL1425C datasheet and user guide.
| ►︎ ACCURACY & RANGE | |
| Leveling Accuracy | ± 1.5 mm/30 m 1/16" @ 100 feet 10 arc seconds |
| Grade Range | Typical ±9%, ±15% with tilt adjustment, dual axis |
| Rotation | 300, 600, 900 rpm |
| Laser Type | 630 - 643 nm |
| Laser Class | Class 2, <3.4 mW |
| Self-Leveling Range | ±5° (±8.7%) |
| Leveling Indicators | LCD indications and LED flashes |
| ►︎ CONTROL | |
| Bluetooth | Built in — Spectra Precision Laser Remote app |
| Radio Range with HL760 | up to 330 feet |
| ►︎ POWER | |
| Power Source | 10.000 mAh NiMH battery pack |
| Battery Life | Typical 45 hours NiMH |
| ►︎ BUILT TO BE DROPPED | |
| Drop rating | 3 ft (1 m) onto concrete |
| Tripod tip-over | 5 ft (1.5 m) |
| Operating Temperature | -4°F to 122°F |
| Storage Temperature | -13°F to +158°F |
| Dust and Waterproof | Yes - IP66 |
| ►︎ PHYSICAL | |
| Tripod Attachments | 5/8 x 11 horizontally and vertically |
| Weight | 7.7 lbs including battery |
| Warranty | 5-Years |
| Operating Diameter | 2,600 feet |
| Low voltage indication | LED battery indicator |
| Low voltage disconnection | unit shuts off |
| ►︎ RC1402 REMOTE CONTROL | |
| Operating Range | 330-feet |
| Power Source | 2 x 1.5V AA Alkaline Batteries |
| Battery Life | 130 Hours |
| Dust and Waterproof | Yes - IP66 |
Compare the Series
Which GL1425C Do You Need?
Every GL1425C package we build, in one place. They all use the same laser — what changes is the receiver, whether a tripod and rod come with it, and which case it lives in.
| Kit | Receiver | Rod | Also includes | Price |
►︎ KITS WITH A TRIPOD AND GRADE ROD | ||||
READS IN TENTHS OF A FOOT | ||||
| GL1425C-12 YOU ARE HERE | HL760 BEST | TENTHS 15 ft rod | RECHARGEABLEQ104025 TRIPODRC1402 REMOTELARGE SYSTEM CASE | $3,195.00 |
| GL1425C-19 | HL760 BEST | TENTHS 15 ft rod | RECHARGEABLEELEVATOR FIBERGLASS TRIPODRC1402 REMOTESMALL CASE | $2,980.00 |
| GL1425C-17 | HL760 BEST | TENTHS 15 ft rod | RECHARGEABLEALUMINUM TRIPODRC1402 REMOTESMALL CASE | $2,835.00 |
| GL1425C-1 | CR700 BEST | TENTHS 15 ft rod | RECHARGEABLEQ104025 TRIPODC71 MAG MOUNTRC1402 REMOTELARGE SYSTEM CASE | $3,395.00 |
| GL1425C-18 | CR700 BEST | TENTHS 15 ft rod | RECHARGEABLEELEVATOR FIBERGLASS TRIPODC71 MAG MOUNTRC1402 REMOTESMALL CASE | $3,175.00 |
| GL1425C-16 | CR700 BEST | TENTHS 15 ft rod | RECHARGEABLEALUMINUM TRIPODC71 MAG MOUNTRC1402 REMOTESMALL CASE | $3,095.00 |
READS IN INCHES | ||||
| GL1425C-22 | HL760 BEST | INCHES 15 ft rod | RECHARGEABLEQ104025 TRIPODRC1402 REMOTELARGE SYSTEM CASE | $3,195.00 |
| GL1425C-29 | HL760 BEST | INCHES 15 ft rod | RECHARGEABLEELEVATOR FIBERGLASS TRIPODRC1402 REMOTESMALL CASE | $2,980.00 |
| GL1425C-27 | HL760 BEST | INCHES 15 ft rod | RECHARGEABLEALUMINUM TRIPODRC1402 REMOTESMALL CASE | $2,830.00 |
| GL1425C-2 | CR700 BEST | INCHES 15 ft rod | RECHARGEABLEQ104025 TRIPODC71 MAG MOUNTRC1402 REMOTELARGE SYSTEM CASE | $3,395.00 |
| GL1425C-28 | CR700 BEST | INCHES 15 ft rod | RECHARGEABLEELEVATOR FIBERGLASS TRIPODC71 MAG MOUNTRC1402 REMOTESMALL CASE | $3,225.00 |
| GL1425C-26 | CR700 BEST | INCHES 15 ft rod | RECHARGEABLEALUMINUM TRIPODC71 MAG MOUNTRC1402 REMOTESMALL CASE | $3,095.00 |
►︎ KITS WITH NO ROD AND TRIPOD | ||||
| GL1425C | HL760 BEST | — | RECHARGEABLERC1402 REMOTECARRYING CASE | $2,720.00 |
| GL1425C-14 | CR700 BEST | — | RECHARGEABLEC71 MAG MOUNTRC1402 REMOTECARRYING CASE | $2,690.00 |
| GL1425C-BCC | no receiver | — | RECHARGEABLECARRYING CASE | $2,000.00 |
| GL1425C-BL | no receiver | — | RECHARGEABLENO CASE | $1,849.00 |
Prices are live from each product page. The HL760 and the CR700 are the two receivers that unlock GradeMatch and PlaneLok.
Full package details — GL1425C Series Package COMPARISION
| GL1425C Series Package COMPARISION | |||||
| Part # | Components | Remote | |||
| DUAL GRADE GL1425C PACKAGE OPTIONS |
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| GL1425C DUAL GRADE - STANDARD PACKAGES | |||||
| GL1425C-BCC | No Receiver with Case | NO REMOTE |
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| GL1425C |
HL760 Deluxe Receiver with C70 Receiver Adapter Carrying Case |
RC1402 |
 |
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| GL1425C-14 | CR700 Multi Use Receiver with C70 Receiver Adapter and C71 Magnetic Mount |
RC1402 |  |
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| GL1425C-BL | - LASER ONLY - No Receiver - No Case |
NO REMOTE |
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| GL1425C DUAL GRADE - COMPLETE PACKAGES | |||||
| GL1425C-1 | INCLUDES: - CR700 Multi-Use Receiver - C70 Receiver Rod Adapter - C71 Magnetic Mount - Aluminum Tripod - 15' Measuring Rod (10ths) - Large System Case |
RC1402 |
 |
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| GL1425C-2 | INCLUDES: - CR700 Multi-Use Receiver - C70 Receiver Rod Adapter - C71 Magnetic Mount - Aluminum Tripod - 15' Measuring Rod (INCHES) - Large System Case |
RC1402 | |
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| GL1425C-16 | INCLUDES: - CR700 Multi-Use Receiver - C70 Receiver Rod Adapter - C71 Magnetic Mount - Standard Aluminum Tripod - 15' Measuring Rod (10ths) - Small Case |
RC1402 |  |
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| GL1425C-17 | INCLUDES: - HL760 Premium Receiver - C70 Receiver Rod Adapter - Standard Aluminum Tripod - 15' Measuring Rod (10ths) - Small Case |
RC1402 |  |
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| GL1425C-18 | INCLUDES: - CR700 Multi-Use Receiver - C70 Receiver Rod Adapter - C71 Magnetic Mount - Elevator Fiberglass Tripod - 15' Measuring Rod (10ths) - Small Case |
RC1402 |  |
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| GL1425C-19 | INCLUDES: - HL760 Premium Receiver - C70 Receiver Rod Adapter - Elevator Fiberglass Tripod - 15' Measuring Rod (10ths) - Small Case |
RC1402 |  |
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| GL1425C-26 | INCLUDES: - CR700 Multi-Use Receiver - C70 Receiver Rod Adapter - C71 Magnetic Mount - Standard Aluminum Tripod - 15' Measuring Rod (INCHES) - Small Case |
RC1402 |  |
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| GL1425C-27 | INCLUDES: - HL760 Premium Receiver - C70 Receiver Rod Adapter - Standard Aluminum Tripod - 15' Measuring Rod (INCHES) - Small Case |
RC1402 |  |
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| GL1425C-28 | INCLUDES: - CR700 Multi-Use Receiver - C70 Receiver Rod Adapter - C71 Magnetic Mount - Elevator Fiberglass Tripod - 15' Measuring Rod (INCHES) - Small Case |
RC1402 |  |
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| GL1425C-29 | INCLUDES: - HL760 Premium Receiver - C70 Receiver Rod Adapter - Elevator Fiberglass Tripod - 15' Measuring Rod (INCHES) - Small Case |
RC1402 |  |
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| All part numbers include laser transmitter, case and NiMH rechargeable battery pack and charger |
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| NEED HELP or HAVE QUESTIONS? Give us a call 1-877-866-5721 | |||||
Grade Laser Comparison
How the GL1425C Compares.
Our full comparison against the GL412N, GL422N, GL612N, GL622N and UL633, plus the component chart for every GL1425C package.
Open the full comparison charts
| GRADE LASER COMPARISON CHART |
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| GL412N | GL422N | GL1425C | GL612N | GL622N | UL633 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accuracy | 1/16-inch @ 100-ft 10 arc seconds |
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| Operating Diameter |
2,600-feet |
2,600-feet | 2,600-feet | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Self- Leveling Range |
±5 degrees electronic servo self-leveling | ±14 degrees electronic servo self-leveling |
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| Grade Range | -10 to +15% | ±9% | -25% to +25% |
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| Slope Type |
Single | Dual | Single | Dual | X, Y, Z axis | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Power Source |
4 x D-Cell NiMH Rechargeable Battery Pack | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Battery Life |
35 Hours NiMH Rechargeable 50 Hours Alkaline |
Typical 45 Hours |
35 Hours NiMH Rechargeable 40 Hours Alkaline |
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| Rotation Speed | 300, 600 rpm |
300, 600, 900 rpm | 300, 600, 750 rpm | 0 to 900 rpm |
0 to 750 rpm | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Water |
Yes IP66 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
Size (inches) |
10.7 Length x 7.7 Width x 7.9 Height |
11 x 7.1 x 9.5 |
9.4 Length x 5.9 Width x 11 Height | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Weight | 6.8 lbs |
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| Warranty | 5-Year | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Wireless Remote Specifications | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Remote Control Type 2-way Communication |
RC402N | RC1402 | RC602N | RC603N | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Battery Type | 130 hrs continuous 1 year normal use |
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| Range | 330 feet | 490 feet | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Spectra Precision GL1425C Laser PACKAGE COMPARISON CHART | ||||||||||
| Part Number | Receiver HL760 |
Receiver CR700 |
Receiver Clamp |
Machine Mag Mount |
Remote | Rechargeable Batteries |
15' Foot Grade Rod |
Tripod | Small Case |
Large Case |
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| DUAL GRADE GL1425C PACKAGE OPTIONS | ||||||||||
| GL1425C |
HL760 |
C70 |
RC1402 |
YES | YES | |||||
| GL1425C-BCC | YES | YES | ||||||||
| GL1425C-1 | CR700 | C70 | YES | RC1402N | YES | Tenths | Q104025 | YES | ||
| GL1425C-2 | CR700 | C70 | YES | RC1402N | YES | Inches | Q104025 | YES | ||
| GL1425C-14 | CR700 | C70 | YES | RC1402N | YES | YES | ||||
| GL1425C-16 | CR700 | C70 | YES | RC1402N | YES | Tenths | 2161-HD | YES | ||
| GL1425C-17 | HL760 | C70 | RC1402N | YES | Tenths | 2161-HD | YES | |||
| GL1425C-18 | CR700 | C70 | YES | RC1402N | YES | Tenths | ELEVATOR | YES | ||
| GL1425C-19 | HL760 | C70 | RC1402N | YES | Tenths | ELEVATOR | YES | |||
| GL1425C-26 | CR700 | C70 | YES | RC1402N | YES | Inches | 2161-HD | YES | ||
| GL1425C-27 | HL760 | C70 | RC1402N | YES | Inches | 2161-HD | YES | |||
| GL1425C-28 | CR700 | C70 | YES | RC1402N | YES | Inches | ELEVATOR | YES | ||
| GL1425C-29 | HL760 | C70 | RC1402N | YES | Inches | ELEVATOR | YES | |||
| GL1425C-BL | NO | NO | NO | NO | NO | YES | NO | NO | NO | NO |
Read This First
Two Things Worth Knowing.
Power: rechargeable, with an alkaline backup
The B10 NiMH pack runs typically 45 hours and charges in under 10 hours on the CH10, and it can charge while the laser runs. As a backup it takes 4 D-cell alkalines (not included), so a missed charge does not end your day. Never take the cells out of the rechargeable cage to fit alkalines: Spectra warns that charging will then damage the unit.
Check it before the job, and after any drop
The GL1425C carries a 5-year warranty on materials and workmanship, but calibration is the user’s responsibility. The 100 ft wall check takes ten minutes; it is step by step in the user guide under Downloads.
BLUETOOTH CONTROL
Your Phone Is Already a Remote.
The GL1425C has Bluetooth built in and a free-to-download app, the Spectra Precision Laser Remote. Spectra’s datasheet says the remote control or the app allows operation of all laser functions from anywhere on the jobsite.
Connect the app (user guide)
1. Turn the laser on. It is discoverable for the first 30 seconds (or start it from M › Settings › Pairing › Bluetooth).
2. Open the app, accept the license and turn on the phone’s location.
3. The level LED turns blue when the phone is connected.
2. Open the app, accept the license and turn on the phone’s location.
3. The level LED turns blue when the phone is connected.
Three ways to run it.
No phone, no remote
At the Laser Itself
- ✓Power on — always starts in automatic self-leveling
- ✓Grade entry on both axes
- ✓GradeMatch, PlaneLok, mask mode and every setting from the menu
The app or the RC1402
From Anywhere on Site
- ✓Grade changes without walking back to the tripod
- ✓Rotation speed — 300 / 600 / 900 rpm
- ✓Errors shown in plain text in the app
Why crews keep the RC1402
The RC1402 Remote
- ✓Radio range published: up to 330 ft
- ✓Works when the phone is flat, gloved-up or in the truck
- ✓Same buttons as the laser keypad
LED REFERENCE
Reading the Lights.
From Spectra’s GL1425C user guide. What each light on the keypad is telling you.
| Indicator | What it means |
| Green | Level and working normally. |
| Green, flash every 4 sec | Level and HI alert armed. The state you want to see all day. |
| Blue | Your phone is connected over Bluetooth. |
| Red (MAN), flashing 1/sec | Manual mode. No self-leveling and no HI alert: watch the beam. |
| Red (HI/MAN), flash every 4 sec | HI alert tripped. The setup moved. Press E, then re-check your elevation. |
| Red (HI/MAN), flash every 5 sec | Standby. Paused, settings held. Hold Manual 3 sec to resume. |
| Level and MAN flashing together | Out of the ±5° self-leveling range. Re-set the tripod closer to level. |
| Battery LED blinking 1/sec | Battery weak: charge soon. |
| Battery LED solid | About 5 minutes left. |
QUICK REFERENCE
Every Button, and What It Does.
You will want this the first week you own one. Print it, or keep this page bookmarked on your phone. Everything here is done at the laser unless the row says otherwise; the RC1402 has the same buttons.
| What you press | What the laser does |
| Press power 1 second | On. It always starts in automatic self-leveling. Hold 2 seconds to turn off. |
| Hold E on the main screen | Shows rotation speed, internal temperature and battery. |
| M › Grade › E | Type the grade digit by digit; Manual jumps between Y and X; E sets it. |
| Hold an arrow 3 seconds | Step & Go: the grade steps up or down; it re-levels when you let go. |
| Up + Down together | Quick Change: Y jumps to 0%, then moves in 1% steps. Left + Right does the same for X (in vertical it starts Line Scan). |
| Manual ×1 | Manual mode: the MAN light flashes red once a second. No self-leveling and no HI alert. |
| Hold Manual 3 seconds | Standby: beam and leveling stop, settings kept, HI alert still watching. |
| Arrow, then Manual within 1 second | Masks that quadrant of the beam. Mask mode is always off at power-on. |
| M › GradeMatch › E › E | Measures the existing grade to the receiver and holds it. |
| Laser off: hold Manual + Power | Pairing for the RC1402 or the HL760 / CR700. |
QUESTIONS & ANSWERS
GL1425C-12 Questions We Actually Get.
Grouped so you can find yours. Buying questions first, then how to work it, then what to do when something is wrong.
Before You Buy 10
What comes in the GL1425C-12 package?
The package includes: GL1425C Dual Grade Laser Transmitter; HL760 Laserometer Laser Receiver with C70 Rod Bracket; 105516 Vertical Adapter for HL Receiver; RC1402N Radio Remote Control; Smartphone Bluetooth Remote Control / Free App; GR151 15-Foot Measuring Rod with measurements in TENTHS; Q104025 Aluminum Tripod; NiMH Rechargeable Batteries - B10; CH10 Worldwide Charger; Large System Carrying Case 128995-00; Multi Language CD, Quick user guide and Safety Instructions.
What is the Spectra GL1425C?
A self-leveling dual grade laser that does three jobs: level, grade and vertical alignment, read with the HL760 receiver included in this package.
How accurate is it?
Leveling accuracy is ±1.5 mm at 30 m (1/16 in at 100 ft); grade accuracy is ±3.0 mm at 30 m (1/8 in at 100 ft), per the Spectra GL1425C user guide.
How far does it work?
Up to 2,600 ft working diameter, so one setup covers a large job site.
How much grade can it run?
Typically ±9% in each axis on a normal tripod setup, and up to ±15% when you pre-tilt the laser with a tripod leg or a tilting base.
Do I need the remote, or can I use my phone?
This package includes the RC1402 remote, which does everything the keypad does from up to 330 ft. The GL1425C also has Bluetooth built in, so the Spectra Precision Laser Remote app lets your smartphone control it.
How long does the battery last? What if I forget to charge it?
The rechargeable NiMH pack runs typically 45 hours and charges in under 10 hours with the CH10 charger. You can charge it while the laser is running, and it also takes 4 D-cell alkaline batteries as a backup (not included), so a missed charge does not end your day.
How tough is it?
IP66 dust and water protected, and built to survive drops of up to 3 ft onto concrete and tripod tip-overs up to 5 ft. Check accuracy after any drop.
What is the warranty?
5 years on the GL1425C laser for materials and workmanship (calibration is not covered), 3 years on the HL760 receiver, 2 years on the RC1402 remote.
Where can I buy it?
Contractors-Tools.com is an authorized Spectra Precision dealer. Call 1-877-866-5721.
Using Your GL1425C 7
Can it measure the slope of existing ground?
Yes. GradeMatch measures the grade between two points with the HL760 in this kit, typically up to 260 ft, so you do not have to calculate it.
What does PlaneLok do?
PlaneLok locks the beam onto a receiver at a fixed point by radio, so vibration and temperature changes do not move your grade. It works horizontally on the Y axis and vertically on either axis, typically up to 260 ft.
How do I dial in a grade?
Press M, choose Grade, press E, set each digit with the arrow buttons and press E again. You can also hold an arrow key to step the grade up or down, or set it from the RC1402 remote or the Laser Remote app.
What happens if someone bumps the tripod?
The height-of-instrument alert stops rotation, turns the beam off and warns you if the laser is knocked out of position, so you do not keep working off a bad setup.
Can I use it vertically?
Yes. Lay it on its stands and it detects vertical. Line Scan centres the beam and the arrow buttons move the line, for anchor bolts, forms and layout.
Can I keep the beam off windows or other crews?
Yes. Mask mode blanks up to three of the four quadrants.
How do I check calibration?
Set up 100 ft from a wall at 0.00%, mark the beam on +Y and -Y; if the marks differ by more than 1/8 in, it needs calibrating. Repeat for the X axis. The full procedure is in the user guide under Downloads.
Troubleshooting 5
The screen shows Error 120. What happened?
The HI alert tripped: the laser’s height changed, usually a bumped tripod or a sinking leg. Press E to clear it, then re-check your elevation against your benchmark before you keep working (Spectra GL1425C user guide).
Error 130 during GradeMatch or PlaneLok?
The laser hit its mechanical limit: the existing grade is beyond ±15%, or the laser needs pre-tilting toward the slope. Clear it, tilt the laser with one tripod leg and try again.
Error 150 or 152: no receiver?
The laser cannot find the HL760 or CR700. Check that the receiver is on, paired, has not auto-shut-off, and is within radio range and on the right axis. Then restart the function.
Error 155?
More than one paired receiver is switched on. During GradeMatch or PlaneLok only one paired receiver may be on; turn the other one off.
The laser beeps and will not start rotating.
It is outside its ±5° self-leveling range: the level and manual LEDs flash together with a warning sound. Re-set the tripod closer to level. If it stays out of range for more than 10 minutes it shuts itself off.
STEP BY STEP
How to Set a Grade on the GL1425C.
The one job everybody asks about, the way we would walk you through it on the phone. The example sets 1.00% on the Y axis for drainage; the method is the same for any grade and for the X axis.
Before you start
The laser on a tripod, a grade rod, the HL760, and the laser, the RC1402 or your phone. Note which way your fall runs.
1
Set the laser up on the tripod
Solid ground, legs pushed in. Everything after this inherits whatever you do here.
2
Point the Y axis down the fall
The slope indication marks on the housing show positive Y and positive X. Aim with the sighting guides.
3
Switch it on and let it finish leveling
It always starts in automatic self-leveling. Wait for the green level light before you enter anything.
4
Open the grade screen
Press M, choose Grade, press E. The cursor starts on the +Y sign.
5
Type 1.00 for Y
Left and right move the cursor; up and down change each digit (and the sign, for a negative grade). Tap Manual to jump to X if you need a cross-slope too.
6
Press E
The “A” symbols flash while the laser levels to your grade. When they stop, the grade is set and the HI alert arms after its delay.
7
Check it on the rod
Read the receiver at a known point down the fall before you trust it with concrete.
Two things that catch people out
1. Past about 9% it needs a tilt. The laser beeps and shows which way: raise or lower one tripod leg toward the slope (or use the M401 tilting base) to reach ±15%.
2. It remembers yesterday’s grade. By default it starts on the last saved grade. Check the display before you trust it, or set Settings › Start Grade › 0 Grade on a shared laser.
2. It remembers yesterday’s grade. By default it starts on the last saved grade. Check the display before you trust it, or set Settings › Start Grade › 0 Grade on a shared laser.
The other job: matching a grade that already exists.
GradeMatch — five steps
1. Set the laser up over the first point and aim the Y axis at the second.
2. Put the rod beside the laser and slide the receiver to on-grade.
3. Carry the rod to the second point, receiver facing the laser.
4. On the laser: M › GradeMatch › E › E. “GM” flashes while it searches.
5. When it beeps, the measured grade is on the display and the laser holds it.
2. Put the rod beside the laser and slide the receiver to on-grade.
3. Carry the rod to the second point, receiver facing the laser.
4. On the laser: M › GradeMatch › E › E. “GM” flashes while it searches.
5. When it beeps, the measured grade is on the display and the laser holds it.
The one that ruins it
Do not change the receiver height on the rod between point 1 and point 2. The whole method works because the receiver is at the same height at both points.
Not sure on any of it? Call 1-877-866-5721 and we will walk you through it with the laser in front of you.
PARTS & ACCESSORIES
Buy the Piece, Not Another Kit.
Every part of the GL1425C kits, sold on its own. If you are one piece short, buy the piece — do not buy another kit.
POWER
B10$85.00
Rechargeable NiMH Pack, 10 Ah
In this kit. A second pack: one on the charger, one in the laser.
CH10$54.95
Universal Charger
In this kit. Spare or replacement; charges the B10 in the laser or out of it.
CONTROL
RECEIVERS & MOUNTS
HL760$416.00
Digital Readout Receiver w/ C70
In this kit. A second HL760 lets one stay on PlaneLok while you measure with the other.
TRIPODS & TILT
Q104025$125.00
Medium Duty Aluminum Tripod
In this kit. Quick clamps, 5/8 x 11 head. The only tripod that fits inside the large system case.
GRADE RODS
GR151$85.00
Grade Rod — TENTHS
In this kit. 15 ft aluminum, tenths of a foot. Fits inside the large system case.
CASES
128995-00$125.00
Large “All In One” System Case
In this kit. Laser, receiver, rod and tripod in one case.
Prices are live from each product page. Not sure which piece fits? Call 1-877-866-5721.
DOWNLOADS
Manuals and Documentation.
GL1425C User Guide (PDF)
Setup, grade, PlaneLok, GradeMatch, app, remote, troubleshooting, specs. 38 pages.
HL760 Receiver User Guide (PDF)
The receiver in this kit: buttons, display, accuracy settings, beeper volume, rod clamp. 2 pages.
GL1425C Hands-On Training (PDF)
Spectra’s training deck: controls, slope indication, setup. 22 slides.
GL1425C Datasheet (PDF)
Applications, key features and technical specifications. 2 pages.
REVIEWS
What Buyers Say.
5.0
★★★★★
3 verified reviews
Same GL1425C laser in all 3
★★★★★
Awesome product and service
“I would definitely buy from here again!”
Verified buyer · GL1425C · Jul 2024
★★★★★
Spectra Laser
“Kevin did an amazing job at communicating and helping me figure out exactly what I needed! Highly recommend buying through him! Prices where great and shipping was extremely fast! I will be buying again very soon!
Thanks again!”
Verified buyer · GL1425C-2 · Mar 2025
★★★★★
Contractors-tool.com
“Very knowledgeable of his equipment he sells and a pleasure to do business with and very helpful with fast service”
Verified buyer · GL1425C-26 · Jun 2026
Each one was left on the GL1425C kit that buyer actually bought. The laser is identical in every kit — what changes is the receiver, the tripod, the rod and the case. Printed word for word.
Questions about the GL1425C? Talk to someone who uses these.
1-877-866-5721
www.contractors-tools.com
Experience the value of Great Customer Service!
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