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Overview for the Spectra GL720 Dual Grade Laser
The Spectra GL720 is an automatic, self-leveling construction grade laser with dual grade capability. With a working range of up to 3,000 feet, it includes a HL700 laser receiver for digital readout of elevation and NiCad batteries for long-lasting performance in the field.
Featuring +/-10% grade range in the X axis and -0.5 to +25% in the Y axis, the GL720 laser level is ideal for general construction and automatic machine control applications. You can mount this device on a 5/8-11 tripod.
Spectra HL700 Laser Detector
The included HL700 Laserometer provides digital readout of elevation that shows exactly how far you are from on-grade and allowing quick elevation checks without moving the rod clamp. This laser receiver has highly visible LED display and features an anti-strobe sensor that stops construction lights from setting off the receiver and makes it easier to identify true laser beam signals. The readout is displayed on dual sided LCDs and selectable units of measure are displayed in millimeter, centimeter, feet, inches or fractional inches.
With a large five-inch reception height, the handheld or rod mounted Spectra HL700 laser detector has a capture function that remotely captures and retains a measurement when the display is difficult to see. Excavation mode puts more reception height and elevation information above grade for higher utilization in digging and staking applications.
Active temperature compensation gives accurate, stable results regardless of temperature changes. In addition, the Spectra Precision GL720’s large alphanumeric display is visible from the ground even on ten foot tripods.
With weather-resistant control panel and built-in nonslip carrying handle, the GL720 allows you to work in all weather conditions. This grade slope laser uses NiCad batteries and offers flexible power options, battery life indicator, and a wireless operated sleep mode that saves power during breaks.
This Spectra grade laser package comes with a HL700 laser receiver, hard carrying case, NiCad rechargeable batteries, charger, power cable and a 2-year manufacturer’s warranty.
Features for the Spectra GL720 Dual Grade Laser
- 3,000 feet operating range
- Dual grade to ±10% horizontal and –0.5 to +25% vertical
- HL700 laser receiver
- Automatic temperature compensation
- Selectable rotation speeds
- Ideal for machine control
- NiCad rechargeable batteries
- Fully sealed aluminum housing
- Protective lens hood
- Large alphanumeric display
- 5/8-11 tripod thread
- Unmatched beam stability
- Intuitive, simple controls
Specifications for the Spectra GL720 Dual Grade Laser
|Exterior||3,000 ft (914 m)|
|Power Source||NiCad or NiMH batteries|
|Battery Life 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)|
|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|
|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)|