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At a Glance

Model: Spectra Precision LL300S-RC8
Laser Class: Class IIIa / 3R red beam
Accuracy: ±1/16 in at 100 ft (±1.5 mm at 30 m)
Self-leveling Range: ±5°
Working Range: Up to 2,000 ft diameter with HR320 receiver
Rotation Speed: 100, 300, 600 RPM

Spectra PrecisionLL300S-RC8SKU 13-642New

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Spectra Precision LL300S-RC8 Laser level Package with HR320 Receiver

Name: Spectra Precision LL300S-RC8 Laser level Package with HR320 Receiver
Brand: Spectra Precision
SKU: 13-642
Price: 1195.00 USD
Availability: InStock

$1195.00

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±5° Range

Cover large layout jobs with a ±5° working reach.

±1/16 in at 100 ft (±1.5 mm at 30 m) Accuracy

Hold grade with a ±1/16 in at 100 ft (±1.5 mm at 30 m) accuracy rating.

Battery Life

Runs on Up to 100 hours (4 x AA alkaline) for jobsite flexibility.

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Eliminates the grade checker

Grade checkers cost $600-800/day. A rotary laser setup pays for itself in weeks and works indefinitely.

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Quick Answer

What is the Spectra Precision LL300S-RC8?

The Spectra Precision LL300S-RC8 Laser level Package with HR320 Receiver is a professional-grade rotating laser level system designed for contractors who need precision leveling and layout on job sites. With a working range up to 2,000 ft diameter, Class IIIa red beam, ±1/16 in accuracy at 100 ft, and IP66 dust and water resistance, it delivers reliable performance in demanding conditions. It's available from Express Tools.

FIELD APPLICATIONS

What contractors use this rotary lasers for

Site Grading

Cut/fill earthwork, building pad preparation, base compaction

Concrete Flatwork

Slab pours, floor leveling, tilt-up panel layout

Machine Control

Grade control reference for motor graders and scrapers

Foundation Layout

Benchmark elevation transfer, footing forms, stem walls

PRODUCT OVERVIEW

Product Description

Professional Grade Control for Large-Scale Jobsites

The Spectra Precision LL300S-RC8 is the remote-capable evolution of the trusted LL300S-8 rotary laser platform, purpose-built for professional contractors who need to manage grade and elevation checks across expansive, active job sites without walking back to the instrument. Paired with the RC8 wireless remote control and the HR320 machine-mount receiver, this kit delivers a complete system for establishing laser reference planes fast, accurately, and efficiently — whether you're grading a parking lot, setting concrete forms, or coordinating multiple crews on a large commercial build.

Rotary Laser Built for Real Jobsite Conditions

On large construction sites, time spent walking between the instrument and a grade rod costs money. The LL300S-RC8 solves that problem by putting full instrument control in the operator's hand at any point within the jobsite. Activate the laser, adjust grade, and confirm elevation without leaving the work area. The LL300S platform has earned its reputation among grading contractors, concrete crews, and site superintendents for its rugged construction, fast self-leveling, and reliable accuracy — and the RC8 configuration adds a workflow advantage that pays off on every large-scale pour or grade check.

Key Specifications

Model: Spectra Precision LL300S-RC8
Laser Class: Class IIIa / 3R red beam
Accuracy: ±1/16 in at 100 ft (±1.5 mm at 30 m)
Self-Leveling Range: ±5°
Working Range: Up to 2,000 ft diameter with HR320 receiver
Rotation Speed: 100, 300, 600 RPM
Remote Control Range: Up to 300 ft (RC8 wireless remote)
Battery Life: Up to 100 hours (4 x AA alkaline)
IP Rating: IP66 dust and water resistant
Operating Temperature: -20°C to +50°C (-4°F to +122°F)
Tripod Thread: 5/8 x 11

What's in the Kit

Spectra Precision LL300S rotary laser head
RC8 wireless remote control unit
HR320 laser receiver with magnetic bracket and clamp
Receiver carrying case
Alkaline batteries (4 x AA)
Nylon carrying case
Operator's manual and quick-start guide

Job Applications

Grading and Site Work: Establish accurate grade planes across large lots and keep earthmoving equipment on grade without repeated instrument checks — ideal for operators using the HR320 mounted on a blade or scraper.
Concrete Flatwork and Forming: Set and verify form heights with precision before and during concrete pours. The remote control lets one operator confirm elevation at the rod without a second crew member at the laser.
Foundation Layout: Use the 360° reference plane to set consistent elevation benchmarks at multiple corners of a foundation, reducing setup time and improving overall accuracy across the structure.
Commercial Interior Fit-Out: Establish a consistent height reference for suspended ceilings, mechanical runs, and framing on large floor plates where walking to the laser would interrupt workflow.

Compatible Accessories

Spectra Precision HR320 Laser Receiver — replacement or additional receiver for multi-crew sites
Spectra Precision RC8 Wireless Remote Control — replacement remote for the LL300S-RC8
Spectra Precision LL300S Carrying Case — heavy-duty protective transport case
Universal Laser Tripod (5/8 x 11) — stable instrument mounting for any terrain
Grade Rod / Leveling Rod — compatible with HR320 receiver bracket for elevation checks

Related Guides

Frequently Asked Questions

What is the working range of the LL300S-RC8?: With the included HR320 receiver, the LL300S-RC8 has a working diameter of up to 2,000 feet, making it well-suited for large grading, paving, and commercial construction sites. Naked-eye visibility of the red beam is limited to about 200 feet in typical daylight conditions, so the receiver is essential for outdoor use.
How far does the RC8 remote control work?: The RC8 wireless remote operates at distances up to 300 feet from the instrument, giving operators the ability to activate, deactivate, and adjust the laser from across a standard jobsite without returning to the tripod.
Is the LL300S-RC8 waterproof?: Yes. The LL300S-RC8 carries an IP66 rating, meaning it is fully protected against dust ingress and powerful water jets. It is designed to continue operating in rain and dusty site conditions without damage to the instrument.
Can the LL300S-RC8 be used for indoor work?: Yes. While the LL300S-RC8 is optimized for large outdoor applications, it performs well on expansive interior projects such as warehouse floors, large commercial fit-outs, and multi-bay industrial buildings where long-range elevation references are needed.

Why This Equipment

Auto Self-Leveling

Compensates for job site movement and setups — no manual leveling required.

Long Range

Reach 2,600+ ft with a receiver — covers large pads and site-wide grading without moving.

IP55+ Protection

Dust-tight and water jet resistant — built for outdoor construction in any weather.

Radio Remote

Change grade or elevation from the cab or anywhere on site without walking back.

Why Buy This?

The right rotary laser pays for itself in weeks.

A grade checker costs $600–800 per day. A quality rotary laser setup eliminates that cost indefinitely — and works faster. One operator with a good laser and receiver can cover ground that used to take a two-person crew.

The gap between a budget unit and a professional-grade one shows up in the field: self-leveling range on uneven pads, IP55+ protection through rain and dust, and radio remote control so you're not walking back to the instrument every time the job moves.

Express Tools is an authorized dealer with genuine, factory-fresh inventory and same-day shipping on in-stock units. We know this equipment and can answer spec questions before you order.

TECHNICAL SPECS

Specifications

Technical Specs

Manufacturer data and field-verified measurements.

Model	Spectra Precision LL300S-RC8
Laser Class	Class IIIa / 3R red beam
Accuracy	±1/16 in at 100 ft (±1.5 mm at 30 m)
Self-leveling Range	±5°
Working Range	Up to 2,000 ft diameter with HR320 receiver
Rotation Speed	100, 300, 600 RPM
Remote Control Range	Up to 300 ft (RC8 wireless remote)
Battery Life	Up to 100 hours (4 x AA alkaline)
IP Rating	IP66 dust and water resistant
Operating Temperature	-20°C to +50°C (-4°F to +122°F)
Tripod Thread	5/8 x 11
Remote Control	Up to 300 ft (RC8 wireless remote)