What You Receive.
LL1505C Laser
Self-leveling rotary laser with manual slope and Bluetooth. 1/16 in at 100 ft, 300/600/900 rpm, IP66, five year warranty.
HL760 Digital Readout Receiver
The advanced receiver: 5 in detection window, 4 in numeric readout, five accuracy settings and the two-way radio that makes PlaneMatch work.
C70 Rod Clamp
The heavy-duty clamp that comes with the HL760, with a bubble vial built in.
B10 Rechargeable Pack
10,000 mAh NiMH. Up to 55 hours a charge. Sealed and keyed so it cannot go in the wrong way round.
CH10 Worldwide Charger
Charges the pack inside the laser through the charger jack, or outside it if you run a spare. Under ten hours.
128994-00 Small Carrying Case
The factory hard case for the laser, receiver and charger.
Laser Remote App
iOS and Android, free. Bluetooth control of slope, PlaneMatch and the laser functions from your own phone.
Quick Guide, Safety Instructions and 5-Year Warranty
Multi-language documentation in the box. The laser carries Spectra’s five year no-cost warranty — if it fails inside five years it is repaired free, parts and labor.
Where This Laser Earns Its Keep.
Applications as Spectra list them on the LL1505C datasheet.
See It On the Job.
Spectra’s own field footage. Pick one and it plays here.
Slope, Three Ways — and Only One Needs the Remote.
The LL300N does manual slope. The LL1505C does manual slope, single-axis slope with the other axis still self-leveling, and PlaneMatch, which works the grade out for you. They are three different jobs and they are worth keeping straight.
The HL760 Gives You the Number.
Every receiver tells you which way to move. This one tells you how far. Instead of sliding it up and down the rod hunting for on-grade, the HL760 shows the distance off grade as a number — in millimetres, inches, fractional inches or feet, whichever you actually work in.
That is the whole difference, and it changes how one person works. Cut and fill becomes a reading rather than a hunt. One man checks elevations that used to need two.
Two more things earn their keep every day. The 5 inch reception height means you find the beam fast coming up the rod — the widest window of any receiver in this range. And there is an LCD on the front and the back, so you read it from wherever you are standing instead of walking round the rod.
The radio is the part that matters on this laser. It is how the HL760 and the LL1505C talk to each other, and it is what makes PlaneMatch possible: you set the receiver where you want the plane to land and the laser hunts until it finds it. An HR320 or an HL450 has no radio, so it cannot answer the laser and cannot do it.
| HL760 | Included in this kit |
| Reception height | 5 in. (127 mm) — the window over which it sees the beam at all |
| Numeric readout height | 4 in. (102 mm) |
| Accuracy settings | 5 working levels — Ultra Fine ~1/32 in, Super Fine ~1/16, Fine ~1/8, Medium ~1/4, Coarse ~1/2 — plus a separate calibration mode at ~1/64 in |
| Display units | mm, cm, inches, fractional inches and feet |
| Displays | Front and rear LCD, plus a 21-position proportional arrow |
| Reception angle | ± 45° minimum |
| Radio to the laser | Up to 330 ft (100 m) — this is what unlocks PlaneMatch |
| Receiver-to-receiver | Up to 260 ft (80 m), even out of sight of each other |
| Beeper | 110 dBA loud, 95 medium, 65 low, or off |
| Power | 2 × AA (included). 60+ hours continuous. Auto shut-off 20 min / 24 hr |
| Environmental | IP67 waterproof and dustproof |
| Drop rating | 10 ft (3 m) onto concrete |
| Clamp | C70 rod clamp included, with bubble vial |
| Smart Capture | Locks on to the beam and shows how far off grade you are without moving the receiver — built for deep excavation |
| Warranty | 3 years — Spectra’s “No Excuses” cover |
Working radius is laser dependent: 3 ft to 1,500 ft with the receiver, and a 4,000 ft working diameter when it is paired with the LL1505C.
Hover any photo to enlarge it.
Off that list it still works — you simply read grade the ordinary way instead of the laser and the receiver talking to each other. So the money goes in once.
Paired with the HL760, the LL1505C works across a 4,000 ft diameter. That is a circle three quarters of a mile across — roughly 288 acres from one setup. Set it once in the morning and it covers ground that would otherwise cost you three or four moves.
And it does that without giving up precision: 1/16 inch at 100 feet from the laser, with the HL760 reading down to 1/32 inch on its finest setting. Tight enough for forms, footers and finish concrete.
That combination is the whole point. Lasers built for distance usually trade away accuracy. Lasers built for accuracy usually keep you moving the tripod. This one does not ask you to pick — the same instrument shoots a garage pad in the morning and a pipe run across the site after lunch.
Accurate the first time is cheaper than accurate the second time. Concrete does not get poured twice.
Six Things in the Owner’s Manual Most Sellers Never Mention.
None of these are on the datasheet. All of them are in the book that comes in the case, and every one of them is a reason this laser is easier to live with than the spec sheet suggests.
Before It Comes Out of the Case.
Every Number, From Spectra’s Own Documents.
Taken from the LL1505C datasheet and the LL1505C User Guide. Where a figure appears in only one of them, we say so rather than round it off.
| ►︎ ACCURACY & RANGE | |
| Accuracy | ±1.5 mm / 30 m — 1/16 inch at 100 ft — 10 arc seconds |
| Operational diameter | 4,000 ft (1,200 m) with the HL760 — 2,600 ft with an HL450 |
| Self-leveling range | ±5° (±8.7%) |
| Slope range | ±9% (5°) — single axis or manual |
| Rotation speed | 300 / 600 / 900 rpm, selectable — set from the RC1402 |
| Laser | 630–643 nm, Class 2 |
| ►︎ CONTROL | |
| Bluetooth | Built in — free Spectra Precision Laser Remote App, iOS and Android |
| Radio range | Up to 100 m (330 ft) — this is the RC1402 / HL760 radio, not Bluetooth |
| PlaneMatch distance | Typically 80 m (260 ft) — needs an HL760 or CR700 |
| Radio channels | Six (0–5) |
| ►︎ POWER | |
| Power source | B10 10,000 mAh NiMH pack (included) or 4 × D-cell alkaline |
| Battery life | Up to 55 hours NiMH — or 60 hours on alkaline |
| Charge time | Under 10 hours — charges inside or outside the laser |
| Charger | CH10 worldwide charger (included) |
| ►︎ BUILT TO BE DROPPED | |
| Drop rating | 1 m (3 ft) onto concrete |
| Tripod tip-over | 1.5 m (5 ft) |
| Environmental rating | IP66 — dust tight, protected against jetted water |
| Operating temperature | -4°F to 122°F |
| Storage temperature | -13°F to 158°F |
| Out-of-level warning | Rotor stops and the red HI/MAN LED flashes |
| ►︎ PHYSICAL | |
| Weight | 7.7 lb (3.49 kg) including the battery |
| Dimensions | 10.7 × 7.7 × 7.9 in |
| Mount | 5/8 × 11 horizontally and vertically |
| Warranty | 5 years — no cost, parts and labor |
The slope range figure is published only in the User Guide troubleshooting table (error 130). It is not on the datasheet.
Which LL1505C Do You Need?
Every LL1505C package we build, in one place. They all use the same laser — what changes is the receiver, whether a rod and tripod come with it, and which case it lives in. Find the row that matches how you work.
Prices are live from each product page. TENTHS reads in tenths of a foot; INCHES reads in feet and inches. Receiver tiers: HR320 good, HL450 better, CR700 and HL760 best — the HL760 and CR700 are the two that unlock PlaneMatch.
Two Things Worth Knowing.
The free Laser Remote App runs this laser over Bluetooth — slope, PlaneMatch, rotation speed, sensitivity, the HI alert, even field calibration. We connected a phone and checked every screen. Two things it cannot reach: radio channel and language. Those are RC1402 only — and so is a radio that reaches 330 ft and behaves the same every day, where Spectra put the app at 150 ft for setting slope — a good day, not a guarantee, because Bluetooth moves with the weather, whatever is in the way, and the handset in your hand.
Connecting has one trick worth knowing before you are standing in a field wondering why it will not pair: the laser only listens for a phone during the first 30 seconds after power-on. Miss that window and you cycle the power — nothing is broken. First run also wants the licence accepted and GPS switched on at the phone. Once it is talking, the status light on the laser turns blue.
You tilt the beam and verify it on the rod — there is no field
to type "1.5%" into. The app will show you a slope percentage on its first screen and it will not
let you set one: tap it and the laser answers "This functionality is not supported by the
Laser." That readout is there because one app runs Spectra's whole range.
What you do instead: Single Axis Slope, on the laser itself — press the manual button
twice and the Y axis tilts while X keeps self-leveling. If you need to dial an exact
percentage and have the laser hold it, you want an automatic slope laser. Call
1-877-866-5721 and we will point you at the right one rather than let you buy twice.
You Cannot Type a Grade Into This Laser.
The LL1505C has Bluetooth built in and a free app — the Spectra Precision Laser Remote, on iOS and Android. It does more than most people expect. But there is one thing it does not do, and it is the reason our phone rings, so we are going to lead with it rather than bury it.
Look at the bottom row of the first screen: the % tile is greyed out. That is Spectra’s own app telling you. Tap it anyway and the laser answers “This functionality is not supported by the Laser.”
It is there because one app runs Spectra’s whole laser range, and the models above this one do take a typed grade. This one does not.
What to do instead: use Single Axis Slope and tilt with the arrows, checking it on the rod — or let PlaneMatch work the grade out for you with an HL760 or CR700.
If you genuinely need to dial in 1.5% and have the laser hold it, you want an automatic slope laser — not this one. Call us on 1-877-866-5721 before you order, not after.
Now the good part — what it actually does.
Spectra’s datasheet says the Bluetooth “eliminates the extra cost of the remote control.” On this laser that is very nearly true, and we checked every screen to be sure.
- Power on — always starts in automatic self-levelling
- Manual mode, both axes — manual button ×1
- Single Axis Slope — manual button ×2. The ramp mode needs nothing else at all.
- Mask Mode and Standby
- PlaneMatch — with an HL760 or CR700
- Rotation speed — 300 / 600 / 900 rpm
- Setting manual slope on your own — Spectra put the app at 150 ft for this
- HI alert delay, sensitivity, mask, standby, all three slope modes
- Field calibration of the X and Y level sensors
- Runtime hours, serial number, firmware, internal temperature
- Share Logs — email the laser’s own fault log to us
- Radio channel — for sites running several lasers
- Language — 14 of them: English, German, Italian, French, Spanish, Portuguese, Dutch, Danish, Norwegian, Swedish, Finnish, Polish, Turkish and Czech
- 330 ft of radio that behaves the same every day — more than twice the app
- Working when the phone is flat, gloved-out or back in the truck
Compare that with full manual mode, where Spectra’s own warning reads: “the laser is not self-leveled… there is no control for the slope accuracy and no warning for the Height of the Instrument (HI-alert).”
Every axis you take manual control of, you also take responsibility for. In single axis you hand over one and keep the guard on the other. In manual you hand over both, and nothing tells you if the tripod gets bumped — not the beam, not the alert, not the receiver. You find out when the concrete is wrong.
Documented against Laser Remote app version 2.1.14, September 2026. Spectra update the app; if you spot a difference, tell us and we will correct this page.
Reading the Lights.
These are the laser’s own panel indicators, written the way Spectra document them. Match what you see to the row and you know the state of the machine without walking over to it.
| Indicator | What it means |
| Green, flashing 1/sec | Self-leveling is running. Give it a moment. |
| Green, solid | Level and inside accuracy. Solid for the first 5 minutes after leveling. |
| Green, flash every 4 sec | Level and HI alert armed. This is the state you want to see all day. |
| Red, flashing 1/sec | Manual mode. The laser is not self-leveling — both axes are under your arrows. |
| Red and green together, 1/sec | Single Axis Slope. Y is under your control, X is still self-leveling. |
| Red every 5 sec | Standby. Beam off to save battery, setup preserved, HI still watching. |
| Red, flashing with a tone | HI / shock alert. Something moved the laser — a bumped leg, a sinking tripod foot. Rotation stops and the beam goes off on purpose. Re-level and check your benchmark before you trust another reading. |
| Blue | A phone is connected over Bluetooth. |
Every Button, and What It Does.
You do not need this to buy the laser. You will want it the first week you own one, standing over the thing trying to remember how to get back out of manual mode. Print it, or keep this page bookmarked on your phone.
Everything here is done at the laser itself unless the row says otherwise — and the two rows that mention the RC1402 can also be done from the free app. The full manual is in the downloads below, and it is built into the app as well.
| What you press | What the laser does |
| Hold power 2 seconds | All LEDs light for 2 seconds. The laser always starts in automatic self-leveling — you cannot leave it in slope by accident overnight. |
| While self-leveling | Status LED flashes once a second. |
| Once it is level | Solid for 5 minutes, then a flash every 4 seconds — that slow flash means level and HI alert armed. |
| Manual button ×1 | Manual mode. MAN flashes red 1/sec. Arrows tilt both axes. |
| Manual button ×2 | Single Axis Slope. Red and green flash together 1/sec. Up/down slopes Y; X keeps self-leveling. |
| Manual button ×3 | Back to automatic self-leveling. |
| Hold manual 3 seconds | Standby. Beam off, leveling stopped, batteries saved — but the HI alert stays live and your setup is kept. Hold 3 seconds again to come back. |
| Arrow, then manual within 1 second | Masks that quarter of the beam. Masking always clears at power-on — yesterday’s mask never follows you to today’s job. |
| M → Rotation → 300/600/900 → E | Rotation speed. The guide names the app or the RC1402 for this. Factory setting is 900 rpm, and it restarts on the last speed used. |
| M → PlaneMatch → E → E | Runs PlaneMatch; ends in Single Axis Slope. Exit with manual ×2. The app does this too. |
| Hold E on the RC1402 | Info screen: rotation speed, internal temperature, battery, firmware and total laser runtime hours. |
LL1505C 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.
Does the LL1505C kit come with a grade rod or a tripod?
How much slope can the LL1505C actually do?
Can I type in a slope percentage such as 1.5 percent?
Do I need the RC1402 remote, or is the phone app enough?
How far will the LL1505C reach?
What is PlaneMatch and do I need a special receiver?
Does the LL1505C kit come with rechargeable batteries?
Can the LL1505C be used vertically?
Is the LL1505C more accurate than the LL300N?
How long is the warranty on the LL1505C?
Can I run the LL1505C on alkaline batteries?
How do I set single axis slope without a remote?
How do I pair the HL760 receiver to the laser?
What do the laser's lights mean?
What is Mask Mode for?
Can I charge the battery pack outside the laser?
How do I do the math on a manual slope laser?
How do I run PlaneMatch?
My phone will not connect to the laser.
The laser stopped, the beam went off and it is warning me.
PlaneMatch failed and the laser is showing error 130.
The laser will not self-level, or it never finishes leveling.
My receiver will not pick up the beam even though the head is spinning.
Two receivers on the same laser give different readings.
How to Set Manual Slope on the LL1505C.
This is the one job people ring us about, so here it is the way we would walk you through it on the phone. The example sets 1% over 100 feet — the most common drive and drainage grade there is — but the method is identical for any slope. Only the number in step 6 changes.
How far to drop the receiver — any slope, any distance
Find your slope down the left, your measured distance across the top. That is how far the receiver moves in step 6.
| Slope | 25 ft | 50 ft | 100 ft | 150 ft | 200 ft |
| 0.5% | 1.5 in | 3 in | 6 in | 9 in | 12 in |
| 1% | 3 in | 6 in | 12 in | 18 in | 24 in |
| 1.5% | 4.5 in | 9 in | 18 in | 27 in | 36 in |
| 2% | 6 in | 12 in | 24 in | 36 in | 48 in |
| 3% | 9 in | 18 in | 36 in | 54 in | 72 in |
100 ft at 1% → 100 × 1 × 0.12 = 12 inches. 150 ft at 2% → 150 × 2 × 0.12 = 36 inches.
2. Longer is more accurate. Setting a 1% slope over 25 ft means finding a 3 inch drop, and being a quarter inch out there is a much bigger error than being a quarter inch out over 100 ft. Set over the longest run the job allows.
The other job: matching a slope that already exists
Everything above creates a grade of a number you chose. This is the opposite job — you already have two hubs at the right elevations and you want the beam to run the line between them, whatever percentage that happens to be. Spectra call it Manual Grade Match, and you never work out the grade at all.
2. Check the beam elevation close to the laser.
3. Press the manual mode button twice for Y-axis single slope. The red and green LEDs flash together, once a second.
4. Stand the rod, receiver already clamped on it, on the second hub.
5. Drive the beam up or down with the arrow buttons — on the keypad, the RC1402N remote or your phone — until the receiver reads on grade.
6. That is the slope. Walk it and check elevations anywhere along the line.
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.
Buy the Piece, Not Another Kit.
Every part of every LL1505C kit, sold on its own. If you are one piece short, buy the piece — do not buy another kit.
Prices are live from each product page. Not sure which rod or which case you need? The chart below lists what ships in every kit — or call 1-877-866-5721 and we will tell you.
Manuals and Documentation.
All three, hosted on our own site so the links do not rot.
What Buyers Say.
in all 3
“Great tool solid & does everything I need and will be adding an equipment receiver as well. The customer service from contractors -tools.com is amazing.”
“Spectra Precision hats off great product , love the case for protection and ease of carrying …. Contractor-Tools.Com Kevin knows his products very helpful…..this sells exactly why I bought !!!! Thank you”
“easy to set up and use.”
Each one was left on the LL1505C kit that buyer actually bought. The laser is identical in every kit — what changes is the receiver, the rod and the case. Printed word for word, nothing tidied up. Questions first? Call 1-877-866-5721.
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