Spectra GL722 Dual Grade Laser
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Make the Grade with the Spectra GL722 Dual Grade Laser
The self-leveling Spectra Precision® GL700 Series dual grade laser easily handles difficult tasks like long-range, high accuracy elevation control and fine grading. This is the right laser for your job.
The GL722 can be used as a single grade laser or an advanced, long-range radio remote controlled dual grade laser. With an innovative collection of features available - Long Range Remote Control, Grade Matching and Automatic Axis Alignment, the GL722 gets you to grade faster and with the accuracy your job demands.
Applications
- Grading and excavation
- Site preparation
- Road, runway, and landfill construction
- Agricultural land levelling and drainage
- Laser based machine control
- General construction vertical alignment such as anchor bolt and form alignment
- Sports fields, tennis courts, driveways and landscaping
In the Box
Automatic set-up to start work faster
The exclusive automatic alignment features allow for quick and easy setup and the temperature and grade compensation systems are designed for superior accuracy. These features allow your grade laser to be used for general construction, machine-control, and applications requiring tight tolerances under all environmental conditions.
Remote Controlled for Easy Operation
With a long-range radio remote the GL722 includes all the benefits of remote operation. This grade laser was built as an easy-to-use tool for taking accurate elevation measurements up to 1500 ft (450 m) away.
Key Features
- Better than 5 arc second servo deadband accuracy for demanding high accuracy requirements
- Active temperature compensation provides accurate stable results regardless of temperature changes
- Automatic self-leveling over the entire grade range simplifies setup and ensures repeatable accuracy
- Large displays make the numbers easy to read, even when set-up on a tall tripod
- Intuitive, simple controls makes using the lasers easy to use and easy to learn
- Fully sealed, rugged aluminum housing and protective lens hood allow work in all weather conditions
- Machine Control compatible and works with all laser-based machine control systems
- Multiple rotation speeds - RPMs - allow for optimal machine control performance
- Long battery life and flexible power options keep the unit working throughout the day
- Grade Bump allows simplification of raising or lowering grade remotely
- Grade Reverse mirrors the grade setting with the push of a button
- Field calibration makes it simple to check and adjust the calibration in the field either at the laser or via the remote control
- Advanced functions and long-range radio remote control of the GL722 make it ideal for large-scale, high accuracy applications
- Systems come complete with receiver and rod clamp, NiMH rechargeable batteries and charger, and rugged waterproof carrying case
Technical Specifications
GL722 Dual Grade Laser:
- Leveling Accuracy: 3/64in @100ft, 1.2mm @30m (8 arc seconds) (a), (b)
- Range Diameter: 3,000 ft (900m) (a), (c)
- Axis Grade Range X: -10 to +10%
- Axis Grade Range Y: -0.5% to +25%
- Grade Resolution: 0.001%
- Self-leveling Range: Up to ± 14°
- Laser Type / Class: 658nm IED Class 2 (GL722IR 785nm Class 1)
- Battery Life: 30hrs (a)
- Rotation Speeds: 300, 600, 900 rpm
- Remote Control option
- Auto Axis Alignment
- Grade Match Mode
- Water Resistant: Completely sealed and waterproof
- Size L x W x H: 7.75 x 10.0 x 11.75 (20 x 25 x 30 cm)
- Weight: 18.5 lbs. (8.4kgs)
- Warranty: 2 years
RC703 Wireless Remote Specifications
- Radio Type: 2.4 gHz digital (encrypted to each laser)
- Operating Range: 500 ft (150m) with automatic alignment (a), (c), (d)
- Battery Life: 100 hrs. (a)
- Warranty: 2 years
Receiver Specifications
- Operating Range (radius): 1500 ft (460m) (e)
- Laser Detection Height: 4.5 in (11.4 cm)
- Accuracy Selections: 5
- LED and LCD Indicators
- Battery Life: 100+ hrs. (a)
- Warranty: 2 Years
(a) at 70° F / 21° C, (b) along the axis, (c) under optimal atmospheric conditions, (d) when the product is set up at a minimum height of 3 ft / 1 m, (e) laser dependent.
