Wireless humidity and temperature sensor in glossy pure white for standalone installation 80x80x17mm or installation in the E-Design55 switch system. Powered by a battery (lifetime 5 years). Smart home sensor. The wireless humidity and temperature sensor continuously measures relative humidity between 0 and 100% (plus/minus 5%) and temperature between -20 and +60 degrees Celsius (plus/minus 0.5 degrees Celsius). It sends a data telegram to the Eltako building radio within 2 minutes of a change. If there is no change, a status telegram is sent every 10 minutes. The transmission interval can be shortened to 1 or 5 minutes by inserting the jumper according to the operating instructions. Data can be evaluated via the actuator F2L14, the Professional Smart Home Controllers MiniSafe, MiniSafe REG, SafeIV, TouchIV, etc., using the Eltako building radio app GFA4. For screw mounting, we recommend stainless steel countersunk screws 2.9x25mm, DIN 7982 C. Suitable for both 5x25mm dowels and 55mm switch boxes. Two stainless steel countersunk screws 2.9x25mm and two 5x25mm dowels are included.