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Geomax Zeta 125S Pipe Laser

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The Geomax Zeta 125 Series Pipe Laser laser is designed for use when space is limited. Its short length means the laser can be used in tight bends and narrow manholes. The manual alignment function allows you to direct the laser by remote control onto a reference rod outside the excavation, without later having to use the grade-setting control once more in the manhole. With functional and versatile configuration, a full range of features and a tough design the Geomax Zeta 125 Pipe Laser (formerly known as QBL QL125) fits all your needs, getting an error-free job done – no matter what the situation or the environmental conditions might be.

Features and Benefits

  • Fast self-levelling
  • Automatic target alignment
  • Cross axis compensation
  • IP68 submerge proof
  • Robust construction - full metal housing for rough conditions.
  • Easy to read, backlit display.
  • Long distance remote control
  • Safe and versatile charging options
  • Compact size, from 125 (5“) pipe used.
  • Wide range of accessories 
  • Available in two Models Zeta125 and Zeta125S 
The smallest diameter
The Zeta125 fits in tight bends and narrow manholes. Its slim build
makes it suitable for pipes with 125 mm (5”) diameter and the Zeta feet ensure users continue working in most any site situation.


Specifications Zeta125 Zeta125S
Self-levelling range +45% to -15%
Grade range +40% to -10%
Grade entry Digit select
Grade display 0.001%
Azimuth range Total range 6 m (20 ft) at 30 m (100 ft)
Accuracy ±5 mm at 100 m (± 1/16” at 100’) ; ± 10 arc sec.; ± .005%
Temperature drift 1”/C arc seconds per degree C
Cross axis levelling Manual Automatic (6°)
Vertical level x a
Autotarget system x a
Manual alignment x a
Beam Type/Output Visible laser diode; 635nm; < 5mW; 3R class
Protection class IP68
Power supply Rechargeable lithium ion battery pack
110/230V AC converter (charge and run simultaneously); 12V power cord
Battery life 40h Li-Ion battery
Thread mounting 5/8”
Operating temperature +50°C to -20°C (122°F to -4°F)
Size and weight 305 (12”) x 105 (4.1”) x 113 mm (4.4”); 2.07 kg
Operating range >300m (985’)
Detection angle 20° (12m / 40’ @30m / 100’)
Rotation speed 1250 rpm
Remote Control
Operating range 190 m (600’) front through the pipe; 7.6 m (25’) from rear
Batteries 3 AA alkaline
Dimensions 119 x 60 x 30 mm (4.7” x 2.35” x 1.2”)


Geomax Zeta 125S pdf brochure 

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