Compatible with all bodies in M30 x 1.5 TELL Class 1 VT = 0.4 when the head is mounted on Somatherm For You bodies. Thermostat with liquid expansion Adjustment range: 6° to 28°C It is placed on a thermostatic valve and thus allows isothermal comfort in the heated room. The sensor element is a liquid that has a very short response time and therefore Allows a very fine adjustment of the comfort temperature, Weight: 0.3527396192 Pounds, Manufacturer: AYOR