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Fully Self Levelling Rotary Laser Level Kit, including Laser Detector for Horizontal, Groundworks Use.

Model: LL100N Base Unit


£376.16 Incl. VAT: £451.39

Availability: In Stock In Stock
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Product overview:

Spectra LL100N Base Unit (No Tripod & Staff)

The Spectra Precision LL100N is a new standard in affordable professional laser tools. A durable & accurate laser level to withstand the toughest of job sites.

The fully automatic, self-leveling Spectra Precision® Laser LL100N sets a new standard in rugged reliability, handling a wide variety of general construction applications. Even in the toughest job site conditions, the LL100N consistently delivers reliable, accurate performance to increase your overall productivity and cost-savings.

The laser can be mounted on a tripod to send a 360° plane of laser light over the entire work area, allowing one person to take accurate, self-leveled elevation measurements up to 175 metres away with the supplied HR320 laser detector. One button operation makes this a simple task.

The LL100N is designed to be durable and reliable, day in and day out, and features superior drop and weather protection. It can withstand drops of up to 3 feet (1 m) onto concrete and tripod tip-overs up to 5 feet (1.5 m).
This ruggedness results in reduced downtime and lower repair costs.

This instrument is capable of handling a wide variety of elevation control applications.
Versatility is added with DUAL-axis manual slope capability, for setting out driveways, ramps, and drainage lines etc with control via an optional RC601 remote control.


Auto levels (self-levels) horizontally for all Groundworks
Automatic electronic self-leveling - turn it on and start working
Simple one-button operation for quick start up
Height of Instrument Alert - unit stops rotating when jarred to avoid erroneous readings
Job site durable and tough - withstands a 1m drop on concrete or a 1.5 m tip over without breakage.
Rugged design, reduces downtime.
Dual axis manual slope mode to match known references.
Slopes can be set up to 30 m away with the optional RC601 remote control
Energy-efficient design offers long battery life on 2 x D-cell alkaline batteries
Rotor cage protection can be removed for precise 360°coverage.


Please note the Base Unit does not include a Tripod or Staff

If you require a Laser of the same type, but as a full kit please look at the Spectra LL100N Premium Kit 


Laser Source: 650 nm visible, Class 2
Laser Accuracy: ±3 mm at 30 metres
Operating Range (Diameter) with HR320 detector: 350m (1,150 ft)
Self-Leveling Range: ±5 degrees
Compensation Method: Electronic self-leveling
Drop Height on Concrete performance: 3ft (1 m)
Manual Slope Mode: Yes (Dual grading with optional RC601 remote control)
Out of Level (HI) Warning: Yes
Power Source: 2 x type “D” alkaline
Battery Life: 50 hours
Rotation Speed: 600 RPM
Tripod Mount (Horizontal and Vertical): 5/8” x 11
Operating Temperature: -5 to 45°C
Storage Temperature: -20 to +70°C
Water Resistant: Yes, IP54 protection
Size: 22 x 17 x 15 cm
Weight: 1.5 kg
Warranty: 2 Year (see notes below).

Laser specification:

Please note this kit has alkaline batteries NOT rechargeables

If you require a Laser of the same type, but with Rechargeable batteries, please look at the Spectra LL300N. 


Detector features:

Kit includes HR320 Detector & Bracket:

Dual LCD’s on front and rear are ideal for general outdoor applications
Fine or standard accuracy fits all application needs.
Strong waterproof housing (IP67) protects the unit from dust, moisture and accidental drops
Loud 100 dBA speaker can be heard on the nosiest job site.
Two On-Grade Sensitivities: Fine 2 mm, Coarse 6 mm
LCD Channels: 5
Battery Life: 70 hrs continuous
Automatic Shutoff: 30 minutes
Dust & Waterproof: Yes to IP67
Weight: 0.33 kg
Warranty: 3 Years

Technical specification:

+/- 3mm @ 30 metres, max. operating diameter 350m (175m either side of the instrument).
An accuracy of +/- 3mm @ 30 metres is equivalent to 0.1 mm/m and to put that into perspective, the best premium German spirit level has an accuracy of +/- 0.5 mm/m or +/- 15mm @ 30 metres.

Dual Grade facility:

 Both X & Y axis can be set to give a maximum fall of up to 1m at 10m distance away. (ie. 1 in 10 & 10% grade)

nb. You will require the optional RC601 remote control to set grades/slopes.

Example usage:

General Groundworks for Residential & small scale, Commercial applications
Footings, foundations & slab-laying
General construction leveling and aligning
Outdoor elevation transfer work such as septic tank installation
Slope capability for setting out driveways, ramps, and drainage lines etc

User guides & Datasheets:

Manufacturers data:

SPECTRA PRECISION WARRANTY (From October 1, 2017) - 2 year "No Cost” warranty

The new worldwide warranty program—effective October 1, 2017—provides expanded “No Cost” warranty coverage for many products including the Spectra LL100N.

Year 1 & Year 2: Free replacement instrument giving full cover against defects due to material & workmanship (parts & labour).

The new warranty policy cannot be applied retrospectively to products sold prior to October 1, 2017. The old policy will remain in effect for these products - see below.

SPECTRA PRECISION WARRANTY (Prior to October 1, 2017) - 3 year limited

The LL100N is backed by the industry's only 3-year instant over-the-counter Exchange Warranty.

Year 1: Free replacement instrument giving full cover against defects due to material & workmanship (parts & labour).

Year 2: Limited cover against defects due to material & workmanship. We will provide a replacement NEW instrument for a supplemental payment of £275 +vat.

Year 3: Limited cover against defects due to material & workmanship. We will provide a replacement NEW instrument for a supplemental payment of £275 +vat.

Optional accessories are also covered on a similar basis:

Laser Detector HR320  - Free for Year 1 & Year 2,  with a supplemental payment of £75 +vat for Year 3.
Remote Control RC601 - as above for Year 1 with a supplemental payment of £60 +vat for Years 2 & 3.

*Warranty period commences from the date of receipt of the equipment*

Purchase options:

Upgrade the kit to include the Spectra HL450 Detector


The Spectra Precision HL450 Detector is an easy-to-use tool that accurately measures elevations across the site, and is ideal for use with any rotating laser level.

The HL450 features a digital readout of elevation that provides a numeric display of ±40 mm to 1mm resolution. The readout is displayed on the large front and rear LCD's and shows exactly how far the elevation is from on-grade.

Accurate measurements can be made without moving the rod clamp, saving time and increasing productivity.

The HL450 has a 102 mm (4 inch) reception height, double the typical industry standard, which allows quick acquisition of the laser beam. Also included is a patented anti-strobe sensor that prevents construction lights from setting off the Detector and makes it easier to identify the laser beam signals.

The Detector is designed to survive the tough construction site conditions. It is totally waterproof (IP67) and can withstand a drop up to 1.5 meters (5 feet) onto concrete.



Digital Readout of Elevation allows faster readings by displaying the exact numerical distance from grade, eliminating the need to move the detector to get to "on-grade".
Anti-Strobe Sensor stops construction strobe lights from setting off the detector and eliminates phantom strikes for easier identification of true laser beam signals.
Large reception height allows faster readings by acquiring the beam quickly, and makes it easier to stay in the beam.
Durable in tough environments provides less downtime due to damage or service requirements after accidental drops.


HL450 Detector upgrade includes:

HL450 instrument
Alkaline batteries x 2
Mounting bracket
Instruction & safety manual
3 Year Warranty

Please Note: If you upgrade to the HL450 Detector, the default HR320 Detector will be removed from the kit.

Product Comparison:

Calibration and servicing:

We check and calibrate all Lasers prior to dispatch, to ensure they meet or exceed the manufacturers published specifications at the time of shipment from the factory.
If you routinely work on large job sites, which require you to have a physical Calibration certificate, issued in your name and matched to the Laser via its serial number, you must ensure you tick the above box marked "Paper Certificate" (where applicable) to add a Calibration certificate to your order. The Certificate will then be generated and included with your Laser. Please note the issuing of a Calibration certificate DOES NOT delay or hold up the despatch of your Laser in any way.

Kit comprises of:

LL100N Rotary Laser Level (checked and pre-calibrated)
HR320 Laser Detector, Staff mounting bracket & Batteries (Option to upgrade to HL450 Laser Detector)
2 type 'D' Duracell alkaline batteries
Instruction & safety manual
Robust carry case

Instruction & safety manual
2 Year Warranty


Don't forget to add the RC601 remote control to your order for Single or Dual Grading.

VAT Invoice:

When the order is dispatched, a PDF (digital copy) of the VAT invoice will be attached to the dispatch confirmation email and a paper copy of the VAT invoice will be in the box.

Key information:

Model LL100N Base Unit
User Guides & Datasheets:


Spectra LL100N User Guide

Spectra LL100N Datasheet


Spectra LL100N Datasheet


Spectra LL100N Datasheet


Spectra LL100N Datasheet


Spectra LL100N User Guide

Spectra LL100N Datasheet


Spectra LL100N Datasheet


Spectra LL100N Datasheet


Brand Spectra Precision
Type Rotary Laser
Laser beam Dot
Laser colour Red Beam
Beam axis Horizontal only
Levelling Fully Self Levelling
Usage Outdoor
Slope setting Dual Grade using Optional Remote Control
Mounting thread 5/8 inch
Power source Alkaline (Non-Rechargeable)
Laser output Class 2
IP rating IP55 (Protected against dust / Protected against jets of water from any direction)
Warranty Automatic 2 Year Warranty

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