Spectra GL622 Dual Grade Laser
Make the Grade with the Spectra GL622 Dual Grade Laser
The automatic self-leveling Spectra Precision® GL622 dual grade lasers help you precisely control difficult tasks like long-range, high accuracy elevation control and fine grading for major construction projects. The GL622 dual grade laser gives you the right tool for the right job: from a dual grade transmitter to an advanced, long-range radio remote controlled steep grade transmitter. The GL622 offers the most innovative collection of features available - Long Range Remote Control, Grade Matching and Automatic Axis Alignment, and - to get you to grade faster and with more accuracy.
With a long-range Radio Remote and range diameter of 2,600 feet, the GL622 includes all the benefits of the full Radio Remote functions… plus the Automatic Axis Alignment and Grade Match capability.
The dual grade laser is an easy-to-use tool that allows you to take accurate elevation measurements with grade up to 1300 ft (400 m) away using a receiver. The exclusive automatic alignment features allow for quick and easy setup. The exclusive temperature compensation system is designed for superior accuracy so that your grade laser can be used for general construction, machine-control, and applications requiring tight tolerances under all environmental conditions.
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Municipal and Government Customers
We love our municipal and government customers. If you need to request a quote or have alternative payment requirements, please visit our government customers page.
The Spectra GL622 Dual Grade Laser is available in several packages
The Spectra GL622 is available in eight packages to offer versatility for the needs of your projects. If you’d like to create your own package, use the form on our “Government Customers” page to reach out to us, or give us a call: we’d love to build a custom package to suite your needs.
Ideal for general construction, site preparation and road construction. The GL622IR is a Class 1 laser. This type of infrared beam is required in special applications where a visible beam is a safety hazard, distracting, or otherwise not permissible.
Applications for the Spectra GL622 Dual Grade Laser
- Grading and excavation
- Site preparation
- Road, runway, and landfill construction
- Agricultural land levelling and drainage
- Laser based machine control
- General construction vertical alignment such as anchor bolt and form alignment
- Sports fields, tennis courts, driveways and landscaping
Key Features of the GL622 Dual Grade Laser by Spectra Precision
- Active temperature compensation provides accurate stable results regardless of temperature changes
- Automatic self-leveling over the entire grade range simplifies setup and ensures repeatable accuracy
- Large displays make the numbers easy to read, even when set-up on a tall tripod
- Intuitive, simple controls make using the lasers easy to use and easy to learn
- Fully sealed, rugged plastic housing and protective lens hood allow work in all weather conditions
- Machine Control compatible and works with all laser-based machine control systems
- Multiple rotation speeds - RPMs - allow for optimal machine control performance
- Long battery life and flexible power options keep the unit working throughout the day
- Advanced functions and long-range radio remote control of the GL622 make it ideal for large-scale, high accuracy applications
- Packages can come complete with receiver and rod clamp, NiMH rechargeable batteries and charger, and rugged waterproof carrying case
Advanced GL622 Features for Enhanced Productivity
Grade Match Mode: Allows you to match the laser to an existing slope. Simply set your receiver at the same height as the transmitter then after going to your remote point, press a button on the wireless remote to enable the transmitter to automatically match and display the grade... without returning to the laser transmitter.
Self-Leveling: Allows the GL412 Single Grade Laser to level itself along both axis. Save time and frustration at the set-up of your jobsite.
PlaneLok: Automatically locks on to an existing elevation or vertical alignment point which eliminates all drift or possibility of error due to improper calibration or weather
Spectra GL622 Dual Grade Laser Technical Specifications
GL622 Dual Grade Laser:
- Leveling Accuracy: 1/16in @100ft, 0.5mm @10m (10 arc seconds) (a), (c)
- Grade Accuracy: 1/8 @100ft, 1.0mm @10m (20 arc seconds) (a), (c)
- Grade temperature drift sensitivity: 0.3mm/10m/1°C; 1/16’ @310ft. @1°F
- Operating Diameter: 2.600 ft (800m) – with detector. (a), (b)
- Axis Grade Range X and Y: -25 to +25%
- Self-leveling Range: Up to ± 14°
- Leveling indicators: LCD indications and LED flashes
- Laser Type / Class: 639nm IED Class 2 (GL622IR 830nm Class 1)
- Power Source: NiMH battery pack (rechargeable)
- Battery Life: 35hrs (GL622: 40hrs) (a)
- Rotation Speeds: 300, 600, 750 rpm
- Radio Range (HL760): up to 490ft (150m). (a), (b), (d)
- Auto Axis Alignment
- Grade Match Mode
- Operating Temperature: -4°F to 122°F (-20°C to 50°C)
- Storage Temperature: -4°F to 158°F (-20°C to 70°C)
- Water Resistant: Completely sealed (IP67)
- Weight: 6.8 lbs. (3.1kgs)
- Low Voltage indication: LCD battery indicator
- Low voltage disconnection: unit shuts off
- Warranty: 5 years
RC602 Wireless Remote Specifications
- Operating Range: up to 490ft (150m). (a), (b), (d)
- Power Source: 2 x 1.5V AA alkaline batteries
- Battery Life: 130hrs (a)
- Dust and Waterproof: Yes – IP55
- Weight: 0.57lb (0.26kg)
- HL760 Digital Readout Receiver
- Digital readout units: mm, cm, ft, in, frac. In
- Reception Height: 5in (127mm)
- Six On-grade sensitivities: 1/64in, 1/32in, 1/15in, 1/8in, 1/4in, 1/2in (0.1. 0.5, 1, 2, 5, 10 mm)
- Power Source: 2 AA alkaline Batteries
- Battery Life: 60+hrs continuous
- Auto shut-off: 30mins / 24hrs
- Operating Temperature: -4°F to 122°F (-20°C to 50°C)
- Dust and waterproof: IP67
- Weight: 9.5 oz (0.27kg)
- Warranty: 3 years
(a) At 70° F / 21° C, (b) under optimal atmospheric conditions, (c) along the axis, (d) Height of instruments is at 39 inches (1m).
