Radio humidity temperature sensor pure white shining for single mounting 80x80mm or mounting in the E-Design55 switch system. With battery (service life 5 years). Smart home sensor The radio humidity temperature sensor continuously measures the relative air humidity between 0 and 100% (plus minus 5%) and the temperature between -20 and +60Grad C (plus minus 0.5 degrees C). It transmits a data telegram to the Eltako building radio within 2 minutes if the change occurs. If no change is made, a status message frame is sent every 10 minutes. The transmission interval can be reduced to 1 or 5 minutes by inserting the jumper according to the operating instructions. Evaluation via the actuator F2L14, the professional Smart home controller Minisafe, Minisafe REG, SafeIV, TouchIV etc. with the Eltako-building radio app GFA4. We recommend using stainless steel counter-sunk screws 2.9x25mm, DIN 7982 C. Both with 5x25mm plugs as well as on 55mm switch boxes. 2 stainless steel countersunk screws 2.