Capable of self-leveling and plumb setup, the Spectra GL422 Dual Grade Laser offers additional features, such as pointing mode and grade match for pipe laying and highly accurate slope measurements. This handheld construction laser also includes a HL700 laser receiver that features a digital readout of elevation and increases the GL422’s operating range up to 2,600 feet.
Pointing Mode and Grade Match
The GL422 grade laser has a dual grade capability of –10 to +15% on both axes and self-plumbs in the vertical position to allow bolt installation, form, tilt up, and curtain wall plumbing. With a self-leveling accuracy of 1/16th inch per 100 feet, it is ideal for agricultural and construction applications.
Offering two additional advanced features, this Spectra rotary laser has a pointing mode that allows “over the top” pipe laying for house connections and grade match to measure existing grade value between two known elevation points. Featuring a sunshade with built-in scope mounting, this laser level allows you to easily install Spectra’s optional sighting scope for quick and accurate axis alignments over longer distances. You can also mount this device on a 5/8-11 tripod thread.
Spectra HL700 Laser Detector
The included HL700 Laserometer increases the GL422’s working diameter up to 2,600 feet. This laser receiver 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. It also has highly visible LED display and features an anti-strobe sensor that stops construction lights from setting off the receiver and enables it 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 HL700 laser detector acquires the beam quickly and makes it easy to stay in the beam. Excavation mode puts more reception height and elevation information above grade for higher utilization in digging and staking applications. It also has a capture function that remotely captures and retains a measurement when the display is difficult to see.
Mask mode allows construction professionals to turn the laser beam off electronically on up to 3 sides of your choice to eliminate interference with other crews. The Spectra Precision GL422 also features an electronic leveling vibration filter that dampens vibrations typically experienced on tall tripods, in high winds or on high vibration worksites. Incorporating automatic temperature and grade compensation, this Spectra laser level delivers highly accurate results in any weather or geographical location. It also includes a RC602 radio remote control that gives you full control of the laser from up to 330 feet away.
With an IP66 rating, the GL422 laser level is protected against dust and water jets from any angle and can survive a drop of up to three feet high on concrete! This grade slope laser uses four NiMH batteries and works up to 55 hours.
This Spectra grade laser package comes with a HL700 laser receiver, remote control, rod clamp, carrying case, NiMH rechargeable battery pack, charger, AA alkaline batteries and a 5-year manufacturer’s warranty.