Spectra Precision LL300N-82 Laser Package w/ HR320 Receiver , HD Tripod and Rod / INCHES

The Spectra Precision LL300N-82 is a complete rotary laser level system engineered for contractors, concrete finishers, and surveyors who work in fractional-inch measurements. Built around the proven LL300N laser platform, this kit pairs a high-accuracy self-leveling rotary laser with an HR320 machine control receiver, heavy-duty tripod, and an inches-graduated grade rod — eliminating on-site conversion math and keeping your crew on schedule.

Product Overview

The LL300N-82 is designed for jobsites where inch-based elevation calls are the standard — from concrete flatwork and finish carpentry to site grading and regional survey applications. The laser self-levels in seconds, broadcasts a 360-degree horizontal plane, and works reliably across a 1,200-foot diameter operating range. Whether you're screeding a slab, setting form boards, or checking drainage slope, this system delivers repeatable accuracy without the guesswork of unit conversion.

Key Specifications

• Model: Spectra Precision LL300N-82
• Accuracy: ±1/16 inch at 100 feet (±1.5mm at 30m)
• Self-Leveling Range: ±5°
• Operating Range: Up to 600-foot radius (1,200-foot diameter) with receiver
• Rotation Speed: 100, 300, or 600 RPM selectable
• Grade Capability: Manual grade via adjustable legs
• Dust & Water Protection: IP66 rated — sealed against dust and heavy rain
• Battery Life: Up to 100 hours on 4 D-cell batteries
• Laser Class: Class IIIa / 3R
• Grade Rod Graduation: Feet and inches (fractional inch increments)

What's in the Kit

• Spectra Precision LL300N — Self-leveling horizontal rotary laser
• HR320 Laser Receiver — Detects laser beam in bright sunlight; numeric display shows cut/fill direction and magnitude
• Heavy-Duty Tripod — Aluminum adjustable-leg tripod rated for rugged site conditions
• Inches Grade Rod — Rod graduated in feet and fractional inches for direct elevation readings without unit conversion
• Carrying case, batteries, operator manual, and calibration certificate

Job Applications

Concrete Flatwork & Slab Pours: Set screed rails and verify slab elevation using inch-based rod calls. The HR320 receiver gives grade crew an instant cut/fill readout so screeding stays on tolerance from first pour to finish.

Finish Carpentry & Interior Leveling: Contractors setting drop ceilings, cabinets, or stair stringers work natively in inches. Skip the tenths-to-inches conversion and read elevation directly off the inches rod for faster layout and fewer errors.

Site Grading & Drainage: Establish finish grade elevations and check drainage swales across the full 1,200-foot operating diameter. The long battery life keeps the laser running through a full workday without battery swaps.

Foundation & Form Setting: Verify footing elevation and set form heights in fractional-inch increments — critical for residential foundations where building codes specify inch-based tolerances.

Compatible Accessories

• Spectra Precision HR320 Replacement Receiver
• Spectra Precision LD-8 Laser Detector Clamp
• Replacement D-Cell Battery Pack
• Aluminum Grade Rod Extensions (Inches)
• Heavy-Duty Laser Level Carrying Case
• Spectra Precision Tripod Replacement Legs

Related Guides

• How to Set Up a Rotary Laser Level on a Jobsite
• Inches vs. Tenths Grade Rods: Which Do You Need?
• Using the HR320 Receiver for Machine Control Applications
• Laser Level Accuracy: What ±1/16" at 100 Feet Really Means

Frequently Asked Questions

What is the difference between the LL300N-82 and the LL300N-2 kit?

The primary difference is the grade rod included in the kit. The LL300N-82 includes an inches-graduated rod for contractors who work in feet and fractional inches. The LL300N-2 includes a tenths-graduated rod suited for civil engineering and excavation work where decimal feet are the standard unit.

Can the LL300N-82 be used outdoors in direct sunlight?

Yes. The included HR320 receiver is designed to detect the laser signal in full sunlight conditions across the full operating range. The naked eye cannot see the beam outdoors in bright light, so the receiver is required for outdoor use.

Does the LL300N-82 support grade or slope matching?

The LL300N laser can be manually tilted to match a slope by adjusting its base legs, but it does not feature electronic single-axis or dual-axis grade matching. For powered grade capability, consider the Spectra LL500 series.

How long will the batteries last on a typical workday?

On 4 standard D-cell alkaline batteries, the LL300N delivers up to 100 hours of continuous operation. For most single-shift jobsites, you can expect multiple days of use before a battery change is needed.