• Infrared rotary laser designed for machine control applications

• Automatic dual grade (X & Y axes) for precise slope and drainage work

• High-accuracy grade control for large-scale earthworks

• Long operating range with compatible machine receivers

• Automatic self-leveling for fast, accurate setup

• Height of Instrument (HI) alert helps prevent incorrect readings

• Rugged, jobsite-ready design built for harsh environments

• IP66 rated – dustproof and water resistant

Technical Specifications

• Accuracy: ±1.5 mm at 30 m

• Working Range: Up to 900 m – 1,000 m diameter with machine receiver

• Grade Range:

  • X-axis: ±15%

  • Y-axis: ±15%

• Self-Leveling Range: ±5°

• Rotation Speeds: Multiple speeds for machine control compatibility

• Beam Type: Infrared (IR)

• Power Supply: Rechargeable battery or alkaline batteries

• Battery Life: Up to 45 hours

• Environmental Rating: IP66

• Operating Temperature: -20 °C to +50 °C

Ideal For

• Laser-guided machine control

• Bulk earthworks and site preparation

• Road and civil construction

• Drainage and slope applications

• Dozers, graders and excavators

What’s Included (Kit contents may vary)

• Spectra Precision GL722 Infrared Dual Grade Laser

• CR700 Reciever

• Rechargeable Batteries

• Charger

• Heavy-duty Carry Case

Why Choose the GL722 Infrared?

The GL722 Infrared is purpose-built for machine control and precision grading, delivering reliable infrared performance, accurate dual-grade capability and rugged durability. It’s an ideal solution for contractors who demand efficiency, accuracy and uptime on large-scale projects.

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Key Benefits
• Dual-grade capability up to ±15% on both axes
• Automatic self-levelling for fast, accurate setup
• Long working range when paired with a compatible receiver
• Bluetooth connectivity for remote control via mobile device
• Rugged IP66-rated housing for harsh jobsite conditions

Designed for Large Job Sites
When used with a compatible receiver, the GL1425C offers a working range of up to 800 metres in diameter, making it ideal for large-scale projects. Its consistent accuracy supports fine grading, trenching, drainage, and slope work where precision is critical.
Bluetooth control allows operators to adjust settings remotely, improving workflow efficiency and reducing unnecessary movement around the site.

Built for Tough Conditions
Engineered to withstand demanding environments, the GL1425C features an IP66-rated enclosure that protects against dust, water, and jobsite impacts. Long battery life, flexible power options, and intelligent height-of-instrument alerts help maintain accuracy throughout extended workdays.

Ideal Applications
• Civil construction and earthworks
• Road construction and site preparation
• Drainage and trenching
• Concrete and foundation work
• General grading and alignment

What’s Included
• GL1425C Dual Grade Laser
• HL760 Smart Receiver
• C70 Clamp
• Vertical Adapter
• RC1402 Remote
• NiMH Battery Pack
• Charger
• Protective Carry Case

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Key Benefits
• Automatic self-levelling for fast setup
• Single-axis grade control for precise slope work
• Long working range up to 800 metres diameter
• HL760 receiver with digital readout for exact grade positioning
• Multiple accuracy settings for fine and coarse grading
• Rugged IP66-rated construction for harsh environments

Designed for Precision Grading
The GL412N is ideal for contractors who need accurate, repeatable grading results without unnecessary complexity. With single-axis grade adjustment, it allows precise slope control for applications such as drainage, trenching, and road preparation.
The HL760 receiver enhances performance by displaying the exact distance to grade, reducing guesswork and improving efficiency on site.

Built for Jobsite Durability
Engineered for tough conditions, the GL412N features an IP66-rated housing that protects against dust, water, and impact. The HL760 receiver is equally robust, designed to maintain performance in demanding outdoor environments.
Long battery life ensures continuous operation throughout the workday, minimising downtime.

Ideal Applications
• Trenching and drainage
• Roadworks and site preparation
• Concrete and foundation work
• General grading and levelling
• Civil construction projects

What’s Included
• GL412N Single Grade Laser
• HL760 Smart Laser Receiver with Adapter C70
• RC1402 Radio Remote Control
• Rechargeable Battery Pack
• 240V Charger
• Vertical Receiver Adapter
• Carrying Case (5289-0025)
• User guides and safety instructions

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GL710 Single-slope Grade Laser with HL700

This easy-to-use, one-person grade laser is economical, yet accurate up to a to 900 meter diameter. With -0.5 to 25% grade range, the GL710 is a great choice for general construction, site preparation, trenching and pipe-laying applications.

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The Spectra Precision GL422N Dual Grade Laser was designed for a wide range of general construction, site preparation, and excavations. This rugged, automatic slope laser provides contractors with accurate levelling, grade, and vertical alignment. With a working range of up to 2,600 feet, it has a grade capability of –10 to +15 percent on both axes. The GL422N is also self-levelling horizontally and vertically within ±5 degrees and has an accuracy of ±1/16 inch per 100 feet. For anchor bolt and form alignment, it self-plumbs in the vertical position and can be mounted on a 5/8-11 tripod thread vertically or horizontally.

The Spectra RC402N full-function remote control comes optional with the GL422N grade laser and offers an easy to use menu-driven interface. With a working of up to 330 feet, this radio remote gives the ability to make long-range grade changes and automatic alignments. The Spectra GL422N has an out of level alert that shuts off the grade laser if it is knocked out of place to prevent inaccurate readings. It also has a selection of sensitivity for accurate results even in high winds or on high vibration job sites.

With an IP66 rating, this laser level is dust-proof and can be used in heavy rain. It can also withstand drops of up to three feet onto concrete and tripod tip-overs up to five feet. This slope laser uses NiMH batteries and works up to 35 hours of continuous use.

GL422N Grade Laser Kit Components:

• GL422N: With HL760 Receiver & RC402N Remote Control

The Spectra HL760 with digital readout of elevation is a highly versatile laser receiver for basic and advanced levelling and aligning applications. With a unique fingerprint function, it is easily paired with the GL422N to detect only its laser beam and avoid conflict between other laser levels working in close proximity. This laser receiver also provides automatic grade matching and PlaneLok to eliminate manual slope adjustments and errors due to improper calibration or weather.

	No Cost 5-Year Warranty offers no repair charge for parts and labor of the laser.
	Shock Proof ensures this construction laser withstands a three feet drop onto concrete.
	Included Radio Remote control is easier to use because it does not have to be aimed at the laser for it to work. This increases the flexibility of the laser for long-range setups while maintaining outstanding accuracy.
	Fingerprint function filters out other lasers that strike the receiver and only accepts the laser that it is paired with.
	Grade Match enables contractors to measure an unknown grade value automatically between two elevation points.
	Dual Axis PlaneLok keeps the laser beam fixed to a receiver in a set position, making it accurate and error free.

Versatile Automatic Grade Lasers for Level, Grade and Vertical Alignment

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GL622N Dual Grade Laser with HL760 RC60

Features: 
Automatic grade matching & axis alignment

Includes: 
GL622N Laser
RC602N remot
 HL760 receiver & clamp
NiMH batteries & 240V charger
Carry Case

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