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Three Arm Protractors

Optical/Mechanical Theodolites

Electronic Tilt Sensors

Specifications

Observation Theodolite Model 20-8500 The model 20-8500 Observation Theodolite is similar to the model 20-8403 except the the 20-8500 is designed for permanent facilities. Instead of a battery box, there is wiring that terminates in a twist-lock male cap for the illumination system of the scales and reticule for night operation. A mating connector is furnished for making a suitable length line cord for connecting to a 6.3 V power source or the W-K Pibal Tiver 22-4850. There is no magnetic compass and illumination is by 6 volt lamps.

Direct all inquires to theodolites@warrenind.com.