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Overview for the Spectra GL722 Dual Grade Laser
The Spectra GL722 is a self-leveling construction laser with dual grade capability, automatic axis alignment, grade matching, PlaneLok and full radio remote functions. With an operating range of up to 3,000 feet, GL722 also includes an HL700 laser receiver for digital readout of elevation and accurate slope measurement outdoors.
Grade Match and Axis Alignment
With the same range and base capabilities as the Spectra GL720, the GL722 laser level has an X axis grade range of +/-10 % and -0.5% to +25% in the Y axis. Grade match allows you to automatically match and display an existing grade, while PlaneLok virtually eliminates beam drift by locking the laser beam to a fixed elevation for increased stability and accuracy.
Automatic axis alignment enables construction professionals to align the GL722 to within +/-40° of the desired axis to easily perform axis alignments in general construction, site preparation, road construction and machine control. You can also mount this device vertically or horizontally on a 5/8-11 tripod.
Spectra HL700 Laser Receiver
The included HL700 laser receiver features a digital readout of elevation that provides a numeric display of +/-2 inches. The readout is displayed on the large front and rear LCDs and shows exactly how far the elevation is from on-grade. Accurate measurements can be made without moving the rod clamp and selectable units of measure can be displayed in millimeter, centimeter, feet, inches or fractional inches.
An anti-strobe sensor prevents false readings from site strobe lights and the five-inch reception height allows quick acquisition of the laser beam. The Spectra HL700 laser detector can either be used as handheld or rod mounted receiver for a wide range of applications.
The GL722 laser level offers automatic temperature compensation for accuracy within environmental changes. With two-way communication between the Spectra GL722 laser and its remote control, you can now change grade and read measurement information from afar. It also features grade bump for raising or lowering the grade remotely and grade reverse that mirrors the grade setting with the push of a button.
With fully sealed aluminum housing and protective lens hood, the GL722 allows you to work in all weather conditions. This grade slope laser uses NiMH batteries and offers flexible power options, battery life indicator, and a wireless operated sleep mode that saves power.
This Spectra grade laser package comes with a HL700 laser receiver, hard carrying case, NiMH rechargeable batteries, charger, power cable and a 2-year manufacturer’s warranty.
Features for the Spectra GL722 Dual Grade Laser
- 3,000 foot operating range
- Dual grade to ±10% horizontal and -0.5 to +25% vertical
- HL700 laser receiver
- Automatic axis alignment
- Grade matching measures and displays the existing grade
- PlaneLok automatically locks on the laser beam
- Automatic temperature compensation
- Grade bump to remotely raise or lower the grade
- Grade reverse mirrors the grade setting
- Selectable rotation speeds
- Ideal for machine control
- Up to 30 hours battery life
- Fully sealed aluminum housing
- Protective lens hood
- Dual, large alphanumeric display
- 5/8-11 tripod thread
- Unmatched beam stability
- Intuitive, simple controls
Specifications for the Spectra GL722 Dual Grade Laser
|Exterior||3,000 ft (914 m)|
|Battery Life with Rechargeable Battery Pack||30 hours|
|Power Source||NiCad or NiMH batteries|
|Battery Life Alert||yes|
|Bump Sensor (H.I./Out of Position Alert)||yes|
|Tripod Adapter (Center Screw Thread)||5/8-11 horizontal and vertical|
|Adjustable Rotating Speed||300, 600, 900 rpm|
|Weight||18.8 lbs (8.5 kg)|
|Dimensions||11.75 x 10.0 x 7.75 in (29.8 x 25.4 x 19.7 cm)|
|Remote Control Operating Distance||750 ft (225 m)|
|Remote Control||Radio/IR remote control|
|Horizontal||1/16” per 100 ft (1.5 mm per 30 m)|
|Transferring Points from Floor to Ceiling||yes|
|Machine Control of Excavators, Graders, Dozers or Similar Equipment||yes|
|Installation of Interior Fittings (cabinets, lighting, windows, countertops, etc.)||yes|
|Short-Range Leveling for Decks, Patios & Swimming Pools||yes|
|Installation/Leveling Interior Walls||yes|
|Installation/Leveling Ceiling Grids||yes|
|Squaring and Layout of Partitions, Walls & Tile Floors||yes|
|Concrete Forms, Footings and Foundations||yes|
|Checking Elevations of Sub-Base and Sub-Grade||yes|
|Short-Run Vertical Alignment||yes|
|Checking Building Square & Area||yes|
|Estimating Cut & Fill||yes|
|Matching Existing Slope & Grade||yes|
|Locating Finished Floor Levels||yes|
|Percentage||±10% in X axis; -0.5 to +25% in Y axis|
|Accuracy||1/8” per 100 ft. (3.0 mm per 30 m)|