"TEG" series analog gas expansion thermostat without pilot light. perry white color

Analogue gas expansion thermostat series "teg" without pilot light. white perry. on/off operation with fixed differential. 1 temperature level with continuous regulation. temperature control on a graduated scale with a mechanical set point indicator. set point with mechanical temperature lock. power supply 230 v ac 50 to 60 hz. output 1 switched contact free of potential 10 ((2) a/250vc.a. perry seven,4x4x7,4cm (width/bottom/height)