Spectra Precision GL412N Single Grade Laser

Spectra Precision GL412N Single Grade Laser is an advanced automatic self‑leveling construction laser designed for precise leveling, slope grading, and vertical alignment applications. 

Built for rugged jobsite conditions and long‑range performance, the GL412N delivers reliable accuracy, extended battery life, and intuitive control making it ideal for contractors, surveyors, and heavy equipment operators.

The Spectra Precision GL412N Single Grade Laser is a durable automatic grade laser that emits a highly visible red laser beam for horizontal leveling and single‑axis slope grading.

Engineered for outdoor construction tasks such as site grading, foundation leveling, trenching, and machine control, this precision laser improves productivity and accuracy with minimal setup time.

Why Choose This Single Grade Laser?

Choosing the GL412N means investing in a grade laser that can:

• Survive rough handling and harsh weather with IP66 protection
• Deliver accurate level and slope grading on projects of any scale
• Maintain long battery life for full workday performance
• Pair with digital receivers and remote controls for efficient operation

This grade laser is a top choice for professionals who demand rugged reliability and precise results.

Key Benefits of the GL412N Single Grade Laser

Precision Grading for Faster Site Setup

The GL412N provides ±1.5 mm accuracy at 30 m essential for:

• Leveling large construction sites
• Establishing consistent slope grades for drainage
• Reducing errors in grade calculations
• Maintaining uniform foundation heights

With an 800 m (2600 ft) operating diameter, this laser ensures visibility and performance across wide sites.

Rugged Durability You Can Trust

This grader laser is built with jobsite resilience in mind:

• Withstands drops up to 1 m (3 ft) onto concrete
• Handles tripod tip‑overs up to 1.5 m (5 ft) without damage
• IP66 dustproof and waterproof for rain, mud, and dusty conditions
• Extended component life reduces downtime and repair costs

Whether on roadworks, landscaping, or heavy construction sites, the GL412N stands up to daily challenges.

Advanced Digital Receiver Compatibility

The system includes the HL760 Digital Readout Receiver with:

• Automatic Grade Match for quick grade setup
• PlaneLok to lock in reference elevations
• Fingerprint technology that ensures the receiver only reads your laser’s beam
• LCD elevation display for precise digital feedback

For machine‑mounted applications, the optional CR600 receiver can be used.

Remote Control for Convenient Operation

With the RC402N radio remote control, you can:

• Change laser functions from up to 100 m / 330 ft
• Adjust grades without returning to the laser
• Save time and effort during layout work

Remote accessibility makes field adjustments faster and more efficient.

Extended Runtime for Full‑Day Work

The GL412N delivers excellent battery life:

• 35 hours with NiMH rechargeable battery pack
• 50 hours on alkaline batteries
• Low‑voltage indicator prevents unexpected power loss

With long runtimes, you avoid interruptions on long jobsite days.

Multiple Uses Across Construction Trades

This grade laser is versatile and suitable for:

• Site grading and excavation
• Road and highway construction
• Foundation and slab level setup
• Trenching and drainage alignment
• Machine control and equipment guidance
• Vertical alignment for walls and structures

Professionals across many sectors rely on this laser for accurate layout and measurement.

Features at a Glance

Laser Leveling and Grading

• Automatic self‑leveling within ±5°
• Red diode laser (650 nm) for high visibility
• Single grade slope capability from −10% to +15%

User‑Friendly Interface

• Menu‑driven controls
• LCD display with status indicators
• LED flashes for leveling alerts

Receiver Functions

• Digital elevation readout
• Anti‑strobe filter prevents interference
• Large reception height for easier targeting

Environmental Protection

• Sealed housings for dust and water resistance
• Operates from −20°C to 50°C (−4°F to 122°F)

Complete Product Package Includes

Your purchase contains everything needed to start working immediately:

• Spectra Precision GL412N Grade Laser
• HL760 Digital Readout Receiver
• C70 Adapter
• Vertical Adapter for HL Receiver
• RC402N Radio Remote Control
• Q104234 NiMH Rechargeable Battery Pack
• Worldwide Charger
• Hard Carrying Case
• 5‑Year Manufacturer Warranty

Detailed Specifications Table

Who Can Benefit from the GL412N Grade Laser?

Contractors and Builders

Contractors will appreciate the robust build quality and precision control for:

• Grading driveways and parking lots
• Preparing foundations and slabs
• Aligning utilities and forms

The digital receiver and remote control streamline field layout tasks.

Surveyors and Site Managers

Survey professionals benefit from:

• High‑accuracy laser data
• Rapid grade setups
• Long battery life for full workdays

These features reduce survey time and increase workflow efficiency.

Heavy Equipment Operators

For machine control and blade guidance:

• The GL412N provides consistent reference planes
• Machine‑mounted receivers (optional) provide on‑equipment readouts
• Grade Match accelerates slope setup

This reduces costly rework in earthmoving and paving tasks.

Tips for Immediate Setup and Use

Fast Setup

1. Mount the laser on a tripod or stable surface.
2. Power on and allow automatic self‑leveling.
3. Use the remote or receiver to set grade targets.
4. Mark grades quickly with receiver feedback.

Maximizing Battery Life

• Use the rechargeable pack when possible.
• Turn off the laser when idle.
• Keep alkaline batteries as a long‑lasting backup.

Frequently Asked Questions

What kind of accuracy does the GL412N deliver?

The GL412N offers ±1.5 mm accuracy over 30 m, making it precise enough for professional grading and leveling tasks.

Can the GL412N work in extreme weather conditions?

Yes the GL412N is IP66 rated, meaning it is fully dust‑tight and protected against high‑pressure water, making it suitable for rain, dust, and harsh sites.

How long will the battery last during a workday?

With the included NiMH battery pack, the GL412N can run up to 35 hours continuously. Using alkaline batteries increases runtime up to 50 hours.

Is the laser easy to control from a distance?

Yes, the RC402N remote control allows full function control up to 100 m / 330 ft, reducing the need to climb tripods or adjust manually.

Does the HL760 receiver work with other lasers?

The HL760 is designed to be compatible with other Spectra Precision lasers for elevation readout, but its unique Fingerprint function ensures it reads only the paired GL412N beam.

Can this laser measure slopes?

Absolutely the GL412N supports single‑axis grading from −10% to +15%, ideal for drainage and slope alignment.

What accessories are included?

Your package includes the laser, HL760 receiver, remote, battery pack, vertical adapter, worldwide charger, hard carry case, and a 5‑year warranty.