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Spectra GL422 Dual Grade Laser

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Spectra GL422 Dual Grade Laser

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  • 2,600 foot operating range

  • Self-leveling

  • Vertical plumb alignment

  • Dual grade from –10 to +15%

  • Choice of receiver

  • Included remote

  • Grade matching and pointing mode

  • Graphic LCD display and keypad

  • 55-hour battery life

  • Water resistant and dustproof to IP-66

  • 5/8-11 tripod thread

Availability: In stock


Overview for the Spectra GL422 Dual Grade Laser

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. 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.

Extra Features

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 and a 2-year manufacturer’s warranty.

Features for the Spectra GL422 Dual Grade Laser

  • 2,600 foot operating range
  • Self-leveling 
  • Vertical plumb alignment
  • Dual grade from –10 to +15%
  • HL700 laser receiver
  • Grade matching
  • Pointing mode for pipe laying
  • Mask mode for using multiple lasers onsite
  • Electronic leveling vibration filter
  • Automatic temperature compensation 
  • Radio remote control
  • 5/8-11 tripod thread
  • 55-hour battery life
  • Water resistant and dustproof to IP-66
  • Withstands a 3 feet drop onto concrete 
  • Graphic LCD display and keypad

Specifications for the Spectra GL422 Dual Grade Laser

Color Red
Wavelength 650 nm
Classification Class 3A/3R
Visibility Visible
Exterior 2,600 ft (792 m)
Self Leveling ± 5°
Battery Life with Rechargeable Battery Pack 55 hours
Power Source NiMH or alkaline batteries
Battery Life Alert yes
Automatic Shut-Off yes
Display Backlit, graphic LCD
Drop Damage Protection 3 ft onto concrete
Protection Class IP66 (dustproof and water jet protected)
Tripod Adapter (Center Screw Thread) 5/8-11 horizontal and vertical
Detecting Indicator LED flashes
Adjustable Rotating Speed 0, 300, 600 rpm
Weight 6.8 lbs (3.1 kg)
Dimensions 8.3 x 7.1 x 7.9 in (21 x 18 x 20 cm)
Warranty 2-year
Remote Control Operating Distance 330 ft (100 m)
Extra Technology
Remote Control RC402
Detector/Reciever HL700/CR600
Horizontal 1/16” per 100 ft (1.5 mm per 30 m)
Storage -4°F to +158°F (-20° to +70°C)
Operating -4°F to +122°F (-20 °C to +50 °C)
Slope Match yes
Grade Operation Automatic
Automatic Leveling yes
Beam Operating Modes Beam masking
Checking/Setting Elevations yes
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
Plumb Reference 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
Type Dual
Percentage –10 to +15%
Accuracy 1/8” per 100 ft. (3.0 mm per 30 m)

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