Building on the concept of previous AMA Tunnel Lasers, but with significant improvements to make tunnelling easier. The T8 design has been perfected during more than 20 years of service. It is extremely robust, built to cope with the harsh tunnelling environment.


  • Tried and proven adjustable locking screws with precision threads.
  • Simple, compact and easy to use, with universal adjustable mount.
  • Robust hard wearing metal-housing, waterproof.
  • Vacuum filled with dry nitrogen = condensation free optics.
  • Easy to replace front window, tilting down to avoid falling debris.
  • New high quality optic giving an operating range over 600 m.
  • Standard UNC 5/8″ thread plus 1″ dia. bolt mount.
  • Cable for 12-30VDC optional 110-230VAC, 50-60Hz
  • Inbuilt polarity protection, very low current draw <50mA/12V. This equals more than a months use with a standard car battery.


Laser sourceVisible diode, 635nm, class 3R Laser output power3,5mW
Optional high power5mW (max 7mW)
Focus distance600m
Beam diameter at 600m35mm
Beam diameter at 100m20mm
Power12-30VDC 110-240VAC, 50-60Hz
Dimensions with bracket
Length (beam direction)270mm
Weight6.9 kg