Spectra Precision Single Grade Laser
GL412N-71 with HL760 Receiver and RC1402 Remote, TENTHS-Rod, Tripod and Large System Case
One Laser. Level, Grade and Plumb.
The automatic, self-leveling Spectra Precision® GL412N-71 single grade laser is the most rugged, cost-effective laser that does three jobs—level, grade, and vertical alignment. Even in harsh jobsite conditions, the GL412N-71 delivers consistently reliable and accurate performance, enabling you to work faster and smarter.
The rugged GL412N lasers can withstand drops of up to three feet onto concrete and tripod tip-overs up to five feet. This strength, combined with full weatherproofing and dustproofing, reduces downtime and lowers repair costs over the life of the product.
The GL412N-71 laser system now includes the advanced HL760 Digital Readout (DRO) receiver that provides automatic Grade Match, PlaneLok and Fingerprint function.
What You Receive.
GL412N Single Grade Laser Transmitter
Single grade on the Y axis, level and vertical. 1/16 inch at 100 ft, 300/600 rpm, IP66.
HL760 Deluxe Receiver + C70 Rod Clamp
LARGE 5-inch Reception Height. A digital readout of how far off grade you are, and the two-way radio for Grade Match and PlaneLok.
105516 Vertical Adapter for HL Receiver
Holds the HL760 for vertical PlaneLok and layout work.
RC1402 Remote Control
Two-way radio remote. Every keypad function from up to 330 ft, on 2 AA batteries.
GR151 Grade Rod 15-foot with Measurements in TENTHS
15 ft aluminum grade rod reading in tenths of a foot.
Q104025 Aluminum Tripod
Aluminum tripod with a 5/8 x 11 mount, sized to travel inside the large system case.
Q104234 NiMH Rechargeable Batteries
10,000 mAh NiMH pack, typically 35 hours. Takes 4 D-cell alkalines as a backup.
95720-00 Worldwide Charger
Worldwide charger for the NiMH pack.
Large System Carrying Case
Holds laser, receiver, remote, rod and tripod. A spot for everything.
Quick user guide and Safety Instructions
Full user guide downloadable from our website: see Downloads below.
5-Year Warranty
On the GL412N laser, materials and workmanship. Calibration is the owner’s job.
The laser sets the grade. The HL760 reads it.
- Single grade. Enter a grade on the Y axis from -10% to +15%; it self-levels to it and holds the other axis level.
- 1/16″ at 100 ft level, 1/8″ at 100 ft on grade. 300 / 600 rpm.
- Self-levels within ±5° (±9%); grades past 9% need the laser pre-tilted.
- The RC1402 radio remote runs every keypad function from up to 330 ft.
- 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.
- 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 and the 105516 vertical adapter.
- Two-way radio with the laser. That is what makes Grade Match and PlaneLok possible.
Call 1-877-866-5721 for express and next-day options. · Five year laser warranty
The Spectra 5289-0027 Large System Carrying Case.
Holds laser, receiver, remote, rod and tripod. A spot for everything. Grab and go knowing you have everything you need when you get to the job site.
Only Spectra and Leica currently make a large laser case like this one.
The Spectra Q104025 Aluminum Tripod.
The only tripod that fits inside the Spectra large system case, so the laser, receiver, remote, tripod and rod travel as one.
The Spectra GR151 15-Foot Grade Rod.
The grade rod that travels inside the large system case. The receiver in this kit clamps straight to it with the C70.
Built to Do Three Jobs Well.
Where This Laser Earns Its Keep.
Applications from our GL412N listing and Spectra’s GL412N/GL422N datasheet.
See It On the Job.
Our GL412N overview, Spectra’s own Grade Match and PlaneLok demos, and the digital readout receivers explained. Pick one and it plays here.
Grade, Two Ways — Type It or Step It.
Press M, pick Grade, press E. The GL412N gives you two ways to put the number in, and you choose which one in the Settings menu. Either way it self-levels to the new grade, and the “A” symbols flash on the screen until it is there.
Digit Select (the default)
A cursor flashes on the Y grade. Left and Right move it digit by digit, Up and Down set each digit and the sign. Press E and the laser goes to grade. Hold Manual for 2 seconds to zero it.
Step and Go
Hold Up or Down and the grade changes, faster the longer you hold. Hold both together and it jumps to 0% and then moves in whole 1% steps. Press E to confirm.
Manual tilt
Press Manual and the arrows tilt the beam by hand on either axis, with no number entered. Press it again to go back to automatic.
Grade in percent or degrees
Read grade the way your plans are written: percent, degrees, or per mille (‰, tenths of a percent). Pick it once in the laser’s Settings menu, along with the HI alert time and the sensitivity.
Vertical PlaneLok: fit the 105516 adapter, photocell at the bottom, and keep the HL760 at least 2 ft off the ground.
Steps from the Spectra GL412N/GL422N user guide (2024) and Hands-On Training. Both are under Downloads.
The HL760 Gives You the Number.
Highly versatile receiver for everyday and advanced leveling and aligning applications
Works with GL412N in automatic Grade Match and PlaneLok applications
- 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
- No need to go “on-grade” to measure
- Saves considerable time
- Reduces rework by allowing remote monitoring
- Increases reliability, accuracy and durability
GL412N 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 GL412N and GL422N.
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.
| 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 | 30 minutes / 24 hours |
| Operating Temp | -4°F to 122°F |
| Dust and Waterproof | Yes - IP67 |
| Weight | 13.1 oz |
| Warranty | 3 Years "No Excuses" |
Paired with the GL412N, the HL760 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.
Change the Grade Without Walking Back.
The Spectra RC1402 remote control mirrors the functionality of the laser keypad and offers additional features using the M and E buttons. This RC1402 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.
| RC1402 | Included in this kit |
| Operating Range | 330-feet |
| Power Source | 2 x 1.5V AA Alkaline Batteries |
| Battery Life | 130 Hours |
| Dust and Waterproof | Yes - IP66 |
It switches itself off 5 minutes after the last button press, and pairs to the laser in a few seconds (steps in the user guide).
Spectra Precision GL412N Single Grade Laser SPECIFICATIONS
| GL412N | Spectra Precision |
| Leveling Accuracy | ± 1.5 mm/30 m 1/16" @ 100 feet 10 arc seconds |
| Operating Diameter | 800 m 2,600 feet |
| Grade Range | -10% to +15% Single Axis |
| Rotation | 300, 600 rpm |
| Laser Type | red diode laser 650 nm |
| Laser Class | Class 2, <3.4 mW |
| Self-Leveling Range | ±5° (±9%) |
| Leveling Indicators | LCD indications and LED flashes |
| Radio Range HL760 | up to 330 feet |
| Power Source | 10.000 mAh NiMH battery pack |
| Battery Life | 35 hours NiMH 50 hours Alkaline |
| Operating Temperature | -4°F to 122°F |
| Storage Temperature | -4° to 158°F |
| Tripod Attachments | 5/8 x 11 horizontally and vertically |
| Dust and Waterproof | Yes - IP66 |
| Weight | 6.8 lbs |
| Low voltage indication | LED battery indicator |
| Low voltage disconnection | unit shuts off |
| Warranty | 5-Years |
| Also stated | Spectra GL412N/GL422N user guide, Rev E 03/24 |
| Grade accuracy | ±3.0 mm/30 m · 1/8" @ 100 ft · 20 arc seconds |
| Grade temperature drift | ±0.9 mm/30 m per 1°C · 1/16" @ 310 ft per 1°F |
| Grades past 9% | Pre-tilt the laser (the +15% end of the range) |
| Grade Match / PlaneLok distance | Up to 100 m (330 ft) on the Y axis |
| Backup power | 4 x D-cell alkaline batteries |
| Charge time | Approx. 13 hours from empty |
| Charging temperature | 50°F to 104°F |
| Grade display | %, ‰ or ° |
| Laser safety | Class 2 (IEC 60825-1:2014) |
Two Things Worth Knowing.
Power: rechargeable, with an alkaline backup
The NiMH pack runs 35 hours and charges in about 13 hours. Forget to charge it and the laser still runs on 4 D-cell alkalines (not included), and indoors the charger can power it directly. Never take the cells out of the rechargeable holder to fit alkalines: Spectra warns that charging will then damage the unit.
Check it before the job, and after any drop
The GL412N carries a 5-year warranty on materials and workmanship, but calibration is the user’s responsibility. The 100 ft wall check takes a few minutes after a 20-minute warm-up; it is step by step in the user guide under Downloads.
Which GL412N Do You Need?
Every GL412N package on our site, in one place. They all use the same GL412N laser. The GL412N itself is Spectra’s core package; every other part number is a kit Contractors-Tools.com builds around it. We customize kits so you get what you need to complete the job.
Swipe the chart sideways to see every column →
| Kit | Receiver | Rod | Also includes | Price |
►︎ SMALL CASE | ||||
| GL412N SPECTRA CORE | HL760 | — | RECHARGEABLERC1402 REMOTEC70 ROD CLAMPSMALL CASE | $2,352.00 |
| GL412N-14 CUSTOM KIT | CR700 | — | RECHARGEABLERC1402 REMOTEC70 ROD CLAMPC71 MAG MOUNTSMALL CASE | $2,526.00 |
| GL412N-17 CUSTOM KIT | HL760 | TENTHS 15 ft rod 11-815-T | RECHARGEABLEALQR20 TRIPODRC1402 REMOTEC70 ROD CLAMPSMALL CASE | $2,426.00 |
| GL412N-27 CUSTOM KIT | HL760 | INCHES 15 ft rod 11-815-C | RECHARGEABLEALQR20 TRIPODRC1402 REMOTEC70 ROD CLAMPSMALL CASE | $2,426.00 |
| GL412N-16 CUSTOM KIT | CR700 | TENTHS 15 ft rod 11-815-T | RECHARGEABLEALQR20 TRIPODRC1402 REMOTEC70 ROD CLAMPC71 MAG MOUNTSMALL CASE | $2,726.00 |
| GL412N-26 CUSTOM KIT | CR700 | INCHES 15 ft rod 11-815-C | RECHARGEABLEALQR20 TRIPODRC1402 REMOTEC70 ROD CLAMPC71 MAG MOUNTSMALL CASE | $2,726.00 |
| GL412N-BCC CUSTOM KIT | None | — | RECHARGEABLESMALL CASE | $1,850.00 |
►︎ LARGE SYSTEM CASE | ||||
| GL412N-1 CUSTOM KIT | CR700 | TENTHS 15 ft rod GR151 | RECHARGEABLEQ104025 TRIPODRC1402 REMOTEC70 ROD CLAMPC71 MAG MOUNTLARGE SYSTEM CASE | $2,695.00 |
| GL412N-2 CUSTOM KIT | CR700 | INCHES 15 ft rod GR152 | RECHARGEABLEQ104025 TRIPODRC1402 REMOTEC70 ROD CLAMPC71 MAG MOUNTLARGE SYSTEM CASE | $2,695.00 |
| GL412N-71 YOU ARE HERE CUSTOM KIT | HL760 | TENTHS 15 ft rod GR151 | RECHARGEABLEQ104025 TRIPODRC1402 REMOTEC70 ROD CLAMPLARGE SYSTEM CASE | $2,521.00 |
| GL412N-72 CUSTOM KIT | HL760 | INCHES 15 ft rod GR152 | RECHARGEABLEQ104025 TRIPODRC1402 REMOTEC70 ROD CLAMPLARGE SYSTEM CASE | $2,521.00 |
| GL412N-41 CUSTOM KIT | HL450 | TENTHS 15 ft rod GR151 | RECHARGEABLEQ104025 TRIPODRC1402 REMOTEC45 ROD CLAMPLARGE SYSTEM CASE | $2,365.00 |
| GL412N-42 CUSTOM KIT | HL450 | INCHES 15 ft rod GR152 | RECHARGEABLEQ104025 TRIPODRC1402 REMOTEC45 ROD CLAMPLARGE SYSTEM CASE | $2,365.00 |
►︎ NO CASE | ||||
| GL412N-BL CUSTOM KIT | None | — | RECHARGEABLENO CASE | $1,950.00 |
Custom kits are built by Contractors-Tools.com. Prices are live from our store. Every GL412N, core or custom, carries the same 5-year Spectra laser warranty. Need a combination you do not see? Call 1-877-866-5721.
How the GL412N Compares.
Our full comparison against the GL422N, GL612N, GL622N and UL633, plus the component-by-component chart for the GL412N and GL422N packages.
Open the full comparison charts
| GL4x2N Series Package COMPARISON | ||||
| Part # | Remote | |||
| SINGLE GRADE GL412N PACKAGE OPTIONS |
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| SINGLE GRADE - RECEIVER + REMOTE PACKAGES | ||||
| GL412N |
HL760 Deluxe Receiver |
RC1402 | ||
| GL412N-14 | CR700 Machine and Rod Mount Receiver with C70 Rod Clamp and C71 Magnetic Mount |
RC1402 | ||
| SINGLE GRADE - COMPLETE PACKAGES | ||||
| GL412N-17 | HL760 Deluxe Receiver with C70 Receiver Adapter and 105516 Vertical Adapter SitePro ALQR20 Heavy-Duty Tripod, Measuring Rod (10ths) |
RC1402 | ||
| GL412N-27 | HL760 Deluxe Receiver with C70 Receiver Adapter and 105516 Vertical Adapter SitePro ALQR20 Heavy-Duty Tripod, Measuring Rod (Inches) |
RC1402 | ||
| GL412N-1 | CR700 Machine and Rod Mount Receiver with C70 Rod Clamp and C71 Magnetic Mount Heavy-Duty Tripod, Measuring Rod (Inches) Large System Carrying Case |
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| GL412N-2 | CR700 Machine and Rod Mount Receiver with C70 Rod Clamp and C71 Magnetic Mount Heavy-Duty Tripod, Measuring Rod (Inches) Large System Carrying Case |
RC1402 | ||
| GL412N-16 | CR700 Machine and Rod Mount Receiver with C70 Rod Clamp and C71 Magnetic Mount SitePro ALQR20 Heavy-Duty Tripod, Measuring Rod (10ths) |
RC1402 | ||
| GL412N-26 | CR700 Machine and Rod Mount Receiver with C70 Rod Clamp and C71 Magnetic Mount SitePro ALQR20 Heavy-Duty Tripod, Measuring Rod (Inches) Small Carrying Case |
RC1402 | ||
| DUAL GRADE GL422N PACKAGE OPTIONS |
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| DUAL GRADE - RECEIVER + REMOTE PACKAGES | ||||
| GL422N | HL760 Deluxe Receiver with C70 Receiver Adapter and 105516 Vertical Adapter |
RC1402 | ||
| GL422N-14 | CR700 Machine and Rod Mount Receiver with C70 Rod Clamp and C71 Magnetic Mount |
RC1402 | ||
| GL422N-NR | HL760 Deluxe Receiver with C70 Receiver Adapter and 105516 Vertical Adapter |
NO REMOTE |
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| DUAL GRADE - COMPLETE PACKAGES | ||||
| GL422N-27 | HL760 Deluxe Receiver with C70 Receiver Adapter and 105516 Vertical Adapter Heavy-Duty Tripod, Measuring Rod (Inches) |
RC1402 | ||
| GL422N-16 | CR700 Machine and Rod Mount Receiver with C70 Rod Clamp and C71 Magnetic Mount Heavy-Duty Tripod, Measuring Rod (10ths) |
RC1402 | ||
| GL422N-26 | CR700 Machine and Rod Mount Receiver with C70 Rod Clamp and C71 Magnetic Mount Heavy-Duty Tripod, Measuring Rod (Inches) |
RC1402 | ||
| 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 CHART |
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| GL412N | GL422N | GL612N | GL622N | UL633 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accuracy | 1/16-inch @ 100-ft 10 arc seconds |
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| Operating Diameter |
2,600-feet |
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| Self- Leveling Range |
±5 degrees electronic servo self-leveling | ±14 degrees electronic servo self-leveling |
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| Grade Range | -10 to +15% | -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 |
35 Hours NiMH Rechargeable 40 Hours Alkaline |
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| Rotation Speed | 300, 600 rpm |
300, 600, 750 rpm | 0 to 900 rpm |
0 to 750 rpm | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Water |
Yes IP66 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Size (inches) |
10.7 Length x 7.7 Width x 7.9 Height |
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 |
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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| NEED HELP or HAVE QUESTIONS? Give us a call 1-877-866-5721 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
What the LEDs Are Telling You.
Green, flashing once a second
Self-leveling. Wait for it.
Green, solid, then a flash every 4 seconds
Level, and the HI alert is armed. Solid for the first 5 minutes or 30 seconds, depending on your HI alert setting.
Red HI/MAN, flashing once a second
Manual mode: the beam is not self-leveling.
Red HI/MAN, flashing every 5 seconds
Standby: the beam is off, the HI alert stays on. Hold Manual 3 seconds to wake it.
Red battery LED flashing
Battery getting low (3.8 to 4.0 V). Solid red means charge it now.
From Spectra’s GL412N/GL422N Hands-On Training and user guide.
GL412N-71 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.
What is the Spectra GL412N-71?
What is the difference between the GL412N and the GL422N?
Can I enter a slope percentage, like 2%?
How accurate is it?
How far does it work?
How much grade can it run?
Is the GL412N-71 Spectra’s package or a Contractors-Tools.com kit?
Which grade rod and tripod are in this kit?
What fits in the large system case?
What is the difference between the GL412N-71 and the GL412N-41?
How long does the battery last? What if I forget to charge it?
How tough is it?
What is the warranty?
Where can I buy it?
How do I dial in a grade?
Can it measure the slope of existing ground?
What does PlaneLok do?
What happens if someone bumps the tripod?
Can I use it vertically?
Can I keep the beam off other crews’ receivers?
How do I check calibration?
The screen shows Error 120. What happened?
Error 130 during Grade Match or PlaneLok?
Error 150 or 152: no receiver?
Error 155?
The remote shows only its model number.
Buy the Piece, Not Another Kit.
Every part of the GL412N-71 kit, sold on its own, plus the pieces that add to it. If you are one piece short, buy the piece — do not buy another kit.
Manuals and Documentation.
Datasheet as images: GL412N Datasheet page 1 · GL412N Datasheet page 2
What Buyers Say.
Each one was left on the GL412N 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.
Authorized Spectra DealerCall 1-877-866-5721
Questions about the GL412N-71? Family owned and operated. We set these systems up every week — tell us the job and the laser you are running and we will spec it before you order.
Experience the value of Great Customer Service!
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