Spectra LL300S-BCC Laser Kit with Rechargeable Batteries and Carrying Case

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At a Glance

Accuracy: ±1/16 in at 100 ft (±1.5 mm at 30 m)
Self-leveling Range: ±5° automatic compensator
Operating Range: Up to 2,000 ft (600 m) diameter with compatible detector
Rotation Speed: 100, 300, or 600 RPM selectable
Beam Type: Red laser diode, Class IIIa / Class 3R
Battery System: Rechargeable lithium-ion pack

Spectra PrecisionLL300S-BCCSKU 11-750New

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Spectra LL300S-BCC Laser Kit with Rechargeable Batteries and Carrying Case

Name: Spectra LL300S-BCC Laser Kit with Rechargeable Batteries and Carrying Case
Brand: Spectra Precision
SKU: 11-750
Price: 988.00 USD
Availability: InStock

$988.00

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±5° automatic compensator Range

Cover large layout jobs with a ±5° automatic compensator 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 System

Runs on Rechargeable lithium-ion pack for jobsite flexibility.

Authorized Spectra Precision Dealer

Genuine, factory-fresh Spectra Precision equipment with legitimate firmware and calibration documentation.

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Stock, compatibility, and ordering questions answered instantly

Authorized dealerGenuine, factory-fresh Spectra Precision equipment

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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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Genuine equipment sourced straight from manufacturer partners.

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Factory-fresh, authentic units with legitimate firmware.

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Quick Answer

What is the Spectra Precision LL300S-BCC?

The Spectra LL300S-BCC Laser Kit with Rechargeable Batteries and Carrying Case is a professional-grade rotary laser level designed for contractors who need reliable leveling and layout across job sites. With ±1/16 in accuracy at 100 ft, automatic self-leveling within ±5°, and an operating range up to 2,000 ft diameter, it handles demanding applications with precision. 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

The Spectra Precision LL300S-BCC is a professional-grade self-leveling rotary laser kit built for contractors who demand reliable, accurate results from the first setup to the last pour of the day. Combining a ±10-arcsecond accuracy red beam laser with a complete rechargeable battery system, integrated charger, and rugged hardshell carrying case, the LL300S-BCC arrives ready to work on day one—no scrambling for batteries, no borrowed gear, no excuses.

Built for Real Jobsite Conditions

Whether you're establishing finished floor elevations on a commercial tenant improvement, checking concrete flatness across a warehouse slab, or setting drainage grades on a landscaping project, the LL300S-BCC delivers the medium-range performance and self-leveling speed that keeps your crew moving. The automatic compensator levels the instrument within ±5° of plumb and locks out the beam if the unit is disturbed beyond that threshold—protecting your layout from costly errors before they happen. The red beam performs reliably in low-light interior environments and shaded exterior conditions, and pairs with Spectra-compatible laser detectors for full outdoor operation at extended ranges.

Key Specifications

Accuracy: ±1/16 in at 100 ft (±1.5 mm at 30 m)
Self-Leveling Range: ±5° automatic compensator
Operating Range: Up to 2,000 ft (600 m) diameter with compatible detector
Rotation Speed: 100, 300, or 600 RPM selectable
Beam Type: Red laser diode, Class IIIa / Class 3R
Battery System: Rechargeable lithium-ion pack
Battery Life: Up to 20 hours per charge
IP Rating: IP66 dust- and water-resistant
Operating Temperature: -4°F to 122°F (-20°C to 50°C)
Weight: Approximately 3.5 lbs (1.6 kg) instrument only

What's in the Kit

Spectra Precision LL300S self-leveling rotary laser instrument
Rechargeable lithium-ion battery pack
AC/DC field charger with vehicle adapter capability
Rugged hardshell carrying case with foam-fitted interior
User documentation and quick-start guide

Job Applications

Concrete Flatwork & Slab Work: Set screed rails and verify slab elevation across large pours with a single instrument setup. The selectable rotation speed lets you slow the beam for manual rod readings or speed it up when running a detector across the slab.

Interior Framing & Drop Ceilings: Establish consistent ceiling grid heights and partition wall elevations in commercial interiors. The compact footprint fits on a standard tripod or elevator rod in tight mechanical rooms and corridor framing conditions.

Site Grading & Drainage: Confirm positive drainage slopes on parking lots, retention areas, and landscape pads. Pair with a Spectra HR320 or compatible detector and grade rod for fast single-person grade checks across the site.

Equipment & Foundation Layout: Transfer benchmark elevations to foundation forms and set anchor bolt heights with repeatable accuracy. The lockout feature alerts operators if the instrument is bumped, preventing undetected grade errors mid-pour.

Compatible Accessories

Spectra HR320 Laser Detector & Clamp — Extends working range to 2,000 ft in full daylight
Spectra HL760 Laser Detector — Audible and visual grade-finding for single-operator use
Tripod with Elevating Center Column — Ideal for interior ceiling applications
Spectra Laserometer Grade Rod — Calibrated for direct detector-mounted readings
Replacement Rechargeable Battery Pack for LL300S — Keep a spare charged and ready

Frequently Asked Questions

Can the LL300S-BCC be used outdoors in daylight?: The red beam laser is most visible indoors or in shaded conditions. For outdoor use in direct sunlight, pairing the LL300S with a compatible Spectra laser detector such as the HR320 extends the effective working range to 2,000 ft in full daylight. The detector replaces visual beam sighting for all grade and elevation work in bright conditions.
How long does the rechargeable battery last per charge?: Under normal operating conditions with the instrument leveled and rotating, the lithium-ion battery pack delivers up to 20 hours of runtime on a full charge. Actual runtime varies with rotation speed and temperature. The included charger accepts both AC power and DC vehicle power for field charging between shifts.
What is the self-leveling range of the LL300S?: The automatic compensator self-levels the instrument within ±5° of plumb. If the unit is set up or disturbed beyond that range, the laser beam shuts off automatically, alerting the operator before any out-of-level readings can be recorded. Always verify the instrument is within the compensator range before beginning layout work.
Is the LL300S-BCC compatible with other brands of laser detectors?: The LL300S is optimized for use with Spectra Precision detectors, which are tuned to its laser frequency for maximum sensitivity and range. Some third-party detectors marketed as universal-compatible may work, but Express Tools recommends Spectra-branded detectors to ensure warranted performance specifications are maintained on the job.

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.

Accuracy	±1/16 in at 100 ft (±1.5 mm at 30 m)
Self-leveling Range	±5° automatic compensator
Operating Range	Up to 2,000 ft (600 m) diameter with compatible detector
Rotation Speed	100, 300, or 600 RPM selectable
Beam Type	Red laser diode, Class IIIa / Class 3R
Battery System	Rechargeable lithium-ion pack
Battery Life	Up to 20 hours per charge
IP Rating	IP66 dust- and water-resistant
Operating Temperature	-4°F to 122°F (-20°C to 50°C)
Weight	Approximately 3.5 lbs (1.6 kg) instrument only