• Spectra Precision® GL622N Grade Laser. Easy-To-Use, Full Featured Automatic Grade Laser.
• The GL622N Dual Grade Laser is rugged, automatic self-levelling laser with grade capability from -25% to + 25% and can be used for a wide variety of grade, excavating and alignment applications by general and speciality contractors.
• Don't stop at just the GL622N, add more functionality and convenience to your job with two key instruments that compliment the GL622N.  The RC602N Remote** and the HL760 Receiver*

Multiple Applications:

• The Spectra Precision GL622N provides the ability to control level, alignment, dual grade and set 90 degrees. 
• The GL622IR is not used for vertical alignment or 90 degree layout.

Long Range:

• One person elevation and grade control with 800 m (2,600 ft) diameter range increases productivity
• Automatic self-levelling – provides fast, easy set-up for horizontal level, grade or vertical alignment (vertical on GL622N only)

Automatic Grade Matching:

• This means the laser moves to the on-grade position on the receiver automatically by communicating wirelessly with the receiver and the grade is then calculated – this is generally used when a constant fall is desired but the grade may not be known (renewing existing driveways or matching existing surfaces)

Grade Range:

• Large, fully compensated grade range from -25% to 25% – keeping the laser leveled no matter what grade you need reducing errors and improving productivity.

Anti-Vibration Filter:

• A laser can be affected by high vibration or strong wind, especially when the laser is mounted on a tall tripod – the GL612N, GL622IR,and G622N have an anti-vibration filter that can be set according to the conditions allowing work to continue regardless of wind conditions or excessive vibrations.

Rugged:

• The GL622N and GL622IR can withstand a 1m (3 feet) drop directly onto concrete or 1.5m (5 feet) pushover on tripod, eliminating costly repairs.

PlaneLok:

• The PlaneLok function can be activated, keeping the laser beam fixed to a receiver in a set position eliminating any error that can be caused by fluctuating temperatures, and keeping the laser accurate and error-free.

Automatic Axis Alignment:

• A critical factor when working with grades is alignment with the grade hub. If an alignment is off, errors can be introduced and exaggerated. The GL622N has an Automatic Axis Alignment function, allowing the user to set up simply and quickly, maintaining accuracy and eliminating costly errors.

Mask Mode:

• the lasers have a virtual masking function that allows the laser beam to be turned off on up to 3 sides, avoiding false readings from glass reflections or interfering with other lasers on the same job site.

GL622N - Dual Grade Laser Package details:

• Item# GL622N dual-slope grade laser with HL760 receiver, rod clamp, RC602N remote, 10 Ah NIMH Batteries and Charger
• Item# GL622N-1: GL622N Dual Grade Laser, 2x HL760* Receiver, RC602 Remote Control, NIMH Battery/Charger
• Item# GL622N-14: GL622N Dual Grade Laser, CR600** Receiver, RC602 Remote Control, NIMH Battery/Charger
• Item# GL622N-DR: GL622N Dual Grade Laser, DR400 DigiRod***, HL760* Receiver, RC602 Remote Control, NIMH Battery/Charger

*HL760 Receiver Details:

• The HL760 Digital Readout Receiver is a highly versatile laser receiver for basic and advanced leveling and aligning applications.
• It is designed for general, concrete, and site preparation contractors. 

Light Bar Technology

• Spectra Precision's patented “Light Bar” technology has significant advantages.
• With “light bar” technology, laser detection resolution is nearly infinite, allowing greater accuracy and consistency. 
• Fewer electronic components and connections are used. 
• So “light bar” based products result in a more robust product.

Features & benefits

• Digital readout of elevation – no need to go to “on-grade” to measure; saves considerable time
• Large 12.7 cm (5 inches) reception height acquires the beam quickly and makes it easy to stay in the beam.
• Works with another HL760 or HL760U for long-range wireless remote display and monitoring – even when the second receiver is out of sight (up to 80 m or 260 ft.)
• Anti-strobe sensor stops construction strobe lights from setting off the receiver and makes it easier to identify true laser beam signals.
• Dust and weatherproof housing withstands a drop of up to 3 m (10 ft) onto concrete for reduced downtime
• Includes C70 rod clamp with bubble vial.