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Spectra GL612N


Spectra GL612N Laser,
when you need even more range

Spectra GL612N Laser

The GL612N Grade Laser provides single grade capability of 25% in addition to being fully self-leveled in vertical for building axis alignment or setting 90 degree. Simple, robust and easy to use with a menu-driven interface that is replicated on the radio remote control makes the GL612N the first choice for any contractor requiring versatile grade capability.

GL612 anti vibration filter

can be set according to the conditions allowing work to continue regardless of wind conditions or excessive vibrations.

Great for these applications:

General Construction

  • Leveling concrete forms and footers

  • Vertical alignment such as wall, columns and form alignment (GL612N/GL622N)

  • Single slope grading and steep slope excavating

  • Grade work for driveways, parking garages, ramps

Pipe and Drainage Installations

  • Over-the-Top sewer and drainage pipe installations

  • Trenching and drainage

Built for today's jobs

  • Withstands a 1 m (3 ft) drop onto concrete 

  • Long operating range - 800m (2.600ft) diameter 

  • Long operating radio range - 150 m (490 ft) 

  • Intuitive keypad and graphic display

  • Password secured

  • Mask mode

  • Various power options

  • Automatic temperature compensation

  • Electronic leveling vibration filter

The perfect side-kick for your laser!

HL760 reciver

HL760 Specifications

Digital readout units: mm, cm, ft, in, frac. in

Reception height: 127 mm (5 inches)
Six On-grade sensitivities:

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)
3 Year Warranty

RC602N reciver

RC602N Specifications

Operating range: up to 150 m (490 ft)
Power source: 2 x 1.5V AA alkaline batteries

Battery life: 130 hours
Dust and waterproof: Yes - IP66
Weight: 0.26 kg (0.57 lbs)

GL612 Multiple Images


Features & Benefits

Multiple Applications -  the GL612N provides the ability to control level, alignment, single grade and set 90 degrees

Long Range - one person elevation and grade control with 800 m (2,600 ft) diameter range increases productivity

Automatic Self-Leveling - provides fast, easy set-up for horizontal level, grade or vertical alignment

Automatic Grade Matching - meaning 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 –both the GL612N 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

Temperature Compensation & PlaneLok - as temperature fluctuates throughout the working day, the internal components of a laser can expand and contract which can cause some additional error without the user noticing. This is can be resolved through the automatic temperature check that the laser performs where the internal software calibrates the laser to its optimal performance based on the temperature. Additionally, the PlaneLok function can be activated. This keeps the laser beam fixed to a receiver in a set a position eliminating any error that can be caused by fluctuating temperatures, keeping the laser accurate and error free

Rugged - the GL612N can withstand a 1m (3 ft) drop directly onto concrete or 1.5m (5 ft) pushover on a tripod, eliminating costly repairs

Mask Mode - the GL612N has a virtual masking function that allows the laser beam to be turned off in up to 3 sides, avoiding false reading from glass reflections or interfering with other lasers on the same jobsite

GL612 Multiple Images

Leveling Accuracy

± 0.5 mm/10 m, 1/16“ @ 100 ft

10 arc seconds


Grade Accuracy

± 1.0 mm/10 m, 1/8“ @ 100 ft

20 arc seconds

Grade Temperature

Drift Sensitivity

± 0,3 mm / 10 m / 1°C

1/16” @ 310 ft. @ 1°F


Operating Diameter

Approx. 800 m (2600 feet) with detector



300, 600, 750 rpm

Laser Class

Class 2 (GL622IR: Class 1)

Operating Temperature

-20°C to 50°C (-4°F to 122°F)

Storage Temperature

-20°C to 70°C (-4°F to 158°F)

Battery Life

35 hours NiMH

(GL622IR: 40 hours NiMH)

NiMH battery pack

Tripod Attachments

5/8 x 11 horizontally and vertically


Dust & Waterproof

Yes. IP 67



3.1 kg (6.8 lbs)

Low Voltage Indicator

LCD battery indicator


5 Years

construction site
Rely on the GL612N.
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