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Geo Fennel FR 77-MM-Tracking Laser Receiver


$495.00 inc GST

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Geo Fennel FR 77 mm tracking laser receiver with digital level indication in millimetres. For use with FL275VA-Tracking, FLG245 & FL510HV-G Geo Fennel Lasers.

  • Extra-long receiving window
  • mm-Indication of difference between laser plane and "0" level
  • "0" position can be defined (offset) metres.


  • For rotating lasers using a red or green laser beam
  • Extra-long receiving window
  • mm-indication of difference between laserplane and "0" level
  • Segments of display indication increase / decrease proportionally
  • "0" position can be defined (offset)
  • Display illumination
  • Robust clamp
  • Special mount for diverse connection, e.g. at the scaffold 
FR-77mm-tracking receiver FR-77mm-tracking-laser-receiver
3-step accuracy +/- 2 / 5 / 9mm
Accuracy mm-indication +/- 1mm
Working range class 2-laser 150m
Working range class 3R-laser 350m
Length receiving window 125mm
Length receiving area mm-indication 100mm
Offset range (0SET) from base line +/- 20mm
Measuring units mm, cm, in, fraction of in
Signal tones 3
Display indication front, back
LED indication front, side, back
Power supply / operating time Alkaline / 110 h
Temperature range -10°C to +50°C 
Display illumination yes
Magnets Top and side
Vials  top, side
Dust / water protection IP67
Dimensions 170 x 77 x 32mm
Weight 0.5 kg


Supplied with:

  • 4 x alkaline batteries
  • Clamp
  • Bracket
  • RF module to operate the tracking function

Geo Fennel FR 77-MM Tracking Laser Receiver, pdf brochure

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