Spectra GL412N Single Grade Laser

The Spectra Precision GL412N Single Grade Laser is a professional rotary laser built for contractors who need accurate single-slope control, dependable elevation performance, and rugged jobsite durability. Designed for general construction, site preparation, concrete work, and grading applications, the GL412N gives crews the flexibility to perform both level and single-grade work with confidence.

With a grade range of -10% to +15% on the Y-axis and a working radius of up to 1300 ft (400 m) with a receiver, the GL412N is well suited for demanding outdoor applications. It combines automatic self-leveling, manual grade entry, PlaneLok, automatic grade match, and remote operation into one efficient laser system.

Built for Single-Slope Construction Work

The GL412N is ideal for contractors who need reliable control over slopes, elevations, and grade changes across a jobsite. Whether setting drainage, checking elevations, preparing pads, or performing general site work, this laser helps reduce setup time and improve accuracy.

Ideal for:

• Site preparation and grading
• Concrete forming and flatwork
• Drainage and slope work
• Excavation and earthwork
• General construction layout
• Elevation control and checking

Its single-grade capability makes it a strong choice for crews that need more than a standard level laser but do not require dual-slope functionality.

Key Features

• Single-grade laser with Y-axis grade range from -10% to +15%
• Working radius up to 1300 ft (400 m) with receiver
• Accuracy of 1/16 in at 100 ft (1.5 mm at 30 m)
• Automatic self-leveling for fast setup
• Manual grade entry for custom slope work
• PlaneLok to lock onto elevation points and reduce drift
• Automatic Grade Match to quickly determine existing slopes
• Mask Mode to electronically block the beam in selected areas
• Line Scan for easier beam location
• Rotation speeds of 300 or 600 RPM
• RC402N remote control for convenient operation
• IP66 dust and water protection
• Up to 35 hours of runtime with rechargeable NiMH battery pack

Advanced Grade and Elevation Control

The Spectra GL412N includes advanced features that help contractors work faster and more accurately. PlaneLok allows the laser to lock onto a receiver point, helping maintain elevation and reduce drift during critical work. Automatic Grade Match helps measure and match existing slopes quickly, which is useful for drainage, tie-ins, and site preparation.

Mask Mode is especially helpful on busy jobsites because it allows the laser beam to be blocked in selected directions. This helps prevent interference with other crews or receivers working nearby.

Rugged Jobsite Performance

Built with an IP66-rated housing, the GL412N is designed to handle dust, water, and harsh construction environments. The rechargeable 10Ah NiMH battery pack provides up to 35 hours of operation, giving crews enough runtime for long workdays without constant charging.

The included HL760 digital receiver improves accuracy and makes it easier to read elevation changes in the field.

What’s Included

• Spectra GL412N Single Grade Laser
• HL760 Digital Receiver
• C70 Rod Clamp
• RC402N Remote Control
• 105516 Vertical Adapter for HL Receiver
• Q104234 10Ah NiMH Rechargeable Battery Pack
• 95720-00 Charger
• Small Carrying Case
• Calibration Certificate
• 5-Year Manufacturer’s Warranty

Reliable Single Grade Performance

The Spectra GL412N Single Grade Laser is a dependable solution for contractors who need accurate slope control, strong range, and rugged field performance. With advanced grade features, long battery life, and a durable IP66 design, it is built to improve productivity on grading, site preparation, and general construction jobs.