Spectra GL622N Dual Slope Grade Laser w/HL760 Receiver


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In stock

The Spectra GL622N is a self-leveling, dual-grade construction laser with long-range operation up to 2,600 feet. With an intuitive keypad and graphic LCD display, this rotary laser features automatic axis alignment and offers PlaneLok and grade matching capabilities for highly-accurate results. Capable of tilting on both axes for precise measurement of slopes, the GL622N laser can be used in a wide variety of outdoor grading and excavating. Automatic axes alignments can be accomplished by positioning the laser receiver at the direction hub in a range of ±40° at the desired laser axis. This allows construction professionals to easily perform axis alignments for grade work applications such as sports fields, parking lots, tennis courts, driveways or any irregular field with non-perpendicular grade profiles.

Ideal for agricultural and construction applications, the Spectra GL622N grade laser delivers a self-leveling accuracy of ±1/16 inch. It also has an automatic dual grade range of ±25% in both axes, providing a fast and easy horizontal level and vertical plumb setup. The self-plumb in the vertical position enables an even wider range of applications such as anchor bolt installation, form, tilt-up, and curtain wall plumbing. The included Spectra HL760 laser receiver provides a digital readout of elevation and features an anti-strobe detector that prevents false readings from site strobe lights. Construction professionals can mount this grade laser vertically or horizontally on a 5/8-11 tripod thread.

The Spectra GL622N incorporates automatic temperature and grade compensation for high accuracy in any weather or geographical location. Mask mode eliminates interference with other crews using a laser onsite and electronic leveling vibration filter reduces vibrations typically experienced on tall tripods, in high winds or on high vibration job sites. With its rugged design, the GL622N laser level can survive a drop of up to three feet on concrete. It also features IP67 rating moisture and dust sealing to handle the tough construction environment. This dual grade slope laser works up to 35 hours using rechargeable NiMH batteries and approximately 40 hours using alkaline batteries.

SKU: GL622N Category: Tag:


  • HL760 Laserometer Receiver
  • RC602 Remote Control
  • NiMH Batteries
  • Multi Volt Battery Charger
  • Jobsite tough carrying case


  • General construction leveling such as forms, footers and pads
  • Precision placement of concrete for critical specification surfaces over long distance and with laser controlled screeds (Automatic PlaneLok)
  • Drift free general construction vertical alignment and plumb for anchor bolt installation, plus form, tilt up and curtain wall plumbing (Automatic PlaneLok)
  • General construction grading and excavating
  • Steep slope road embankments and ditch banks
  • Sports fields, driveways, ramps and drainage


  • Up to 2,600 feet operating range with laser receiver
  • ±1/16 inch accuracy at 100 feet
  • Self-leveling within ±14 degrees
  • Dual grade to ±25% in both axes
  • Automatic axis alignment
  • Grade matching measures and displays the existing grade
  • PlaneLok automatically locks on the laser beam
  • Scan mode with five preset sizes and variable adjustment
  • Mask mode for using multiple lasers on site
  • Electronic leveling vibration filter
  • Automatic temperature compensation
  • Optional radio remote control
  • Ideal for machine control applications
  • 5/8-11 tripod thread
  • Up to 40-hour battery life
  • Water resistant and dustproof to IP-67
  • Withstands a 3 feet drop onto concrete
  • Graphic LCD display and keypad


Spectra Precision GL622N Single Grade Laser SPECIFICATIONS
  • Leveling accuracy1,3: ± 0.5 mm/10 m,
    • 1/16“ @ 100 ft, 10 arc seconds
  • Grade accuracy1,3: ± 1.0 mm/10 m,
    • 1/8“ @ 100 ft, 20 arc seconds
  • Operating diameter1,2: approximately (2600 feet) with detector
  • Grade range (Y, X-GL622N): ± 25% both axes (not simultaneously)
  • Rotation: 300, 600, 750 rpm
  • Laser type: 639 nm
  • Laser class : Class 2
  • Self-leveling range: approximately ± 14°
  • Leveling indicators: LCD indications and LED flashes
  • Radio range (HL760)1,2,4: up to 490 feet
  • Power source: NiMH battery pack
  • Battery life1 : 35 hours NiMH
  • Operating temp.: -4°F to 122°F
  • Storage temp.: -4°F to 158°F
  • Tripod attachments: 5/8 x 11 horizontally and vertically
  • Dust and waterproof: Yes – IP67
  • Weight: 6.8 lbs
  • Low voltage indication: LCD battery indicator
  • Low voltage disconnection: unit shuts off
  • Warranty: 5 Years
  Spectra HL760 Laser Receiver FEATURES and SPECIFICATIONS
  • Highly versatile receiver for basic and advanced leveling and aligning application
  • Works with GL612N/GL622N in automatic Axis Alignment (only GL622N), Grade Match and PlaneLok applications
  • Key Features:
    • Digital readout of elevation
    • Exact distance from grade displayed
    • Anti-strobe sensor to prevent false reading from jobsite strobe lights
  • Large reception height to ease beam reception
  • Withstands a drop of up to 10 foot
  • Radio communication – works with another HL760 for long range wireless remote display and monitoring capability
  • “Fingerprint” function of the HL760 DRO receiver only accepts the beam from the laser it is paired with
  • User Benefits
    1. No need to go “on-grade” to measure
      • (1) at 21° Celsius (70° F)
        (2) under optimal atmospheric circumstances
        (3) along the axis
        (4) Heigt of instruments 1m (e.g. with tripod)
    • Saves considerable time
    • Reduces rework by allowing remote monitoring
    • Increases reliability, accuracy and durability

Spectra HL760 Laserometer Laser Receiver SPECIFICATIONS

  • Digital readout units: mm, cm, feet, inches, fractional inch
  • Reception height: 127 mm (5 inches)
  • Six On-grade sensitivities:
    • Ultra Fine 0.5 mm (~1/32 in)
    • Super Fine 1 mm (~1/16 in)
    • Fine 2 mm (~1/8 in)
    • Medium 5 mm (~1/4 in)
    • Coarse 10 mm (~1/2 in)
    • Calibration Mode 0.1 mm (~1/64 in)
  • Battery life (2 x AA): 60+ hours continuous operation
  • Auto shut-off: 30 minutes/24 hours
  • Operating temp.: -20°C to 50°C (-4°F to 122°F)
  • Dust and waterproof: Yes – IP67
  • Weight: 0.27 kg (9.5 oz)
  • Warranty: 3 Years “No Excuses”

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