Radiation detector, 'Teletector 6112B', metal / plastic / wood, made by Automess, Ladenberg, Germany, 1980-2005
The Teletector 6112B is a portable battery-operated instrument used mainly for measuring gamma radiation. It can also be used for detecting (but not measuring) beta radiation. It is enclosed in a wooden carry case. The machine is a grey pear-shaped object with a long black probe attached. On the face of the machine is a switch and readout meter.
Two Geiger Mueller tubes contained at the end of a telescopic probe serve as detectors. An earphone or an audio speaker can be connected to the instrument for acoustic indication. The fully transistorised printed circuit is contained in a waterproof metal case. Four 1.5 V cells in the handle serve as a power supply.
The special characteristics of the instrument are: wide measuring range from 0.1 mR/h (rem) to 1000 R/h in five switch controlled scales; simple operation by one switch for all functions of the instrument; error free reading due to scale changing meter; and the self-contained telescopic probe is extendable up to 4 metres, increasing the safety factor because of distance from radiation source, and allowing for measurement in inaccessible places.
The Teletector comes with a loudspeaker and earphones.