Spectra Precision GL720 Dual Grade Laser

Spectra Precision GL720 Dual Grade Laser

The GL720 features +/- 10% in the X axis grade range and -0.5 to +25% Y-axis grade range with high accuracy up to 3,000 foot (900 meter) diameter. The GL720 is ideal for general construction and machine control grade applications. The GL720 includes the HL700 digital readout receiver and C70 rod clamp.

The automatic self-leveling Spectra Precision® GL700 Series grade lasers help you precisely control difficult tasks like long-range, high accuracy elevation control and fine grading for major construction projects. The GL700 Series gives you the right laser for the right job...from a single grade transmitter to an advanced, long-range radio remote controlled steep grade transmitter. The GL700 Series offers the most innovative collection of features available - Long Range Remote Control, Grade Matching and Automatic Axis Alignment, and - to get you to grade faster and with more accuracy. The grade laser is an easy-to-use tool that allows you to take accurate elevation measurements with grade up to 1500 ft (450 m) away using a receiver. The exclusive automatic alignment features allow for quick and easy setup. The exclusive temperature and grade compensation systems are designed for superior accuracy so that your grade laser can be used for general construction, machine-control, and applications requiring tight tolerances under all environmental conditions.

Key Features and Benefits:

• 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

HL700 Digital Readout Receiver
Highly Versatile Receiver for Basic and Advanced Leveling and Aligning

Key Features and Benefits:

• Digital Readout of Elevation provides a numeric display of ± 2 inches (± 5 cm) and shows exactly how far the elevation is from on-grade
• A large 5 inch (12.7 cm) reception height, more than double the industry standard, allows quick acquisition of the laser beam
• Unique anti-strobe sensor stops construction strobe lights from setting off the receiver, and eliminates phantom strikes for easier identification of true laser beam signals
• Multiple on-grade sensitivities to customize accuracy needs to application
• Designed to survive the tough construction site conditions; it is totally waterproof and can withstand a drop of 10 feet onto concrete
• Simultaneous elevation LEDs signal in low light levels and over a longer range provide easier reading in poor light
• Two clamp positions for cut/fill or excavation. Excavation mode puts more reception height and elevation information above grade for higher utilization in digging and staking applications
• Three-year “No Excuses” warranty
• C70 Adapter with Bubble Vial included