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  • Spectra GL722

    Advanced Features for Precise and Efficient Grade Setups.

The self-leveling Spectra Precision® GL700 Series grade lasers provide precise control for challenging tasks like long-range, high-accuracy elevation control and fine grading in major construction projects. With a range of models, from single grade transmitters to advanced, long-range radio remote-controlled steep grade transmitters, the GL700 Series offers the perfect laser for every job.

The GL700 Series allows for accurate elevation measurements up to 1500 ft (450 m) away, making it ideal for general construction, machine control, and tight tolerance applications.

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Spectra HL700 digital Laser Receiver

Add the power of remote control.

Enhance the GL722’s capabilities with the HL760 receiver for precise grade detection and the CR700 receiver for long-range accuracy.

Spectra HL700 digital Laser Receiver

RC703 Remote Control Specifications

•  Radio Type: 2.4 GHz spread spectrum, encrypted to each laser transmitter
•  Battery Life: 2.5 weeks
•  Optical Axis Fine Adjust
•  Automatic Alignment Range ±40° Max
•  225 m (750 ft) General Operation Range
•  150 m (500 ft) Automatic Alignment Range
•  Height 19cm (7.5 in)
•  Width 10.8 cm (4.25 in)
•  Depth 4.4 cm (1.75 in)
•  Weight 0.40 kg (0.86 lb)

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Spectra HL700 digital Laser Receiver

CR600 Specifications

•  270-degree reception angle
•  Dual mount option (clamp or magnet)
•  Display channels: 15
•  Detection accuracies: 5
•  Super bright LED indicators
•  Spectral sensitivity
•  Audio indication
•  Battery life up to 100 hours

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Features and benefits

Active Temperature Compensation – accurate, stable results regardless of temperature change

Long Range Wireless Link – unaffected by direction or sunlight provides quick, accurate set-up even when the laser is on a 3m tripod and provides full functional control of the laser

Protective Lens Hood – ensures laser performance in inclement weather means the laser will work when you are working regardless of weather

Intuitive, simple controls – makes using the GL700 Series easy to use and learn

Long Life Battery – flexible power options, battery life indicator and wireless operated sleep mode that saves battery during breaks

Fully Sealed, Rugged Aluminum Housing – with weather-resistant control panel, allow you to work in all weather and work conditions

Grade Bump – allows you to simply raise or lower the grade remotely

Grade Reverse – Mirrors the grade setting with the push of a button, flipping the set grade for example from +1% to -1%​

Automatic off-grade sensor – prevents incorrect grading and wasted man and machine hours​

Long range remote – 225m (750ft) for general operation and 150m (500ft) automatic alignment​

Automatic Axis Alignment – allows you to align automatically to your grade hub eliminating costly error by not being aligned correctly when using grade

​Machine Control Compatible – works with all laser-based machine control systems​

Infrared Model – for rail work where red beams are not allowed on live track – The GL722IR provides all the benefits of the standard model but with Infrared beam

Specifications

Grade Range
Axis Grade Range X
-10 to +10% (GL710, GL720, GL722)

Axis Grade Range Y
-0.500 to +25% (GL720, GL722)

Self-Levelling
GL710 self levels to 10%
GL720, GL722, self-level to 25%

Grade Resolution
0.001% Servo Deadband Accuracy
4.6 arc seconds (GL710, GL720, GL722)

Laser Classification
CDRH II (IECI)

Range/Radius
Laser – 450 m (1500 ft) with Spectra
Precision Lasers machine-mounted receivers

Mounting Threads
5/8” x 11” on all models
3 1/2” X 8” Mounting Adapter optional

Waterproof Housing
Waterproof Aluminum Housing

Dimensions
Weight  8.5 kg (18.8 lbs.)
Height  29.8 cm (11.75 in)
Width  25.4 cm (10.0 in)
Depth  19.7 cm (7.75 in)

Available Options
GL720 comes with HL700 Receiver
GL722 comes with CR600 ​Receiver

Rod Mount for Remote Control
M100 Mount converts all models to a 3 1/2” x 8 Mounting
Thread or Quick Disconnect

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GL710GL720GL722
Range (Diameter)900m (3,000 ft)900m (3,000 ft)900m (3,000 ft)
Radio RemoteNoNoYes
Auto Axis AlignmentNoNoYes
Grade Match ModeNoNoYes
PlaneLokNoNoYes
Grade Range X AxisN/A-10 to +10%-10 to +10%
Grade Range Y Axis-0.5 to +25%-0.5 to +25%-0.5 to +25%

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