Transmitter protection level IP65 Receiver protection level IP44 Transmitter dimensions 172x130x125 mm Receiver dimensions 135x255x85 mm Transmitter weight 1,1 Kg Working temperature -20/+55°C Voltage applicable to the contacts max 220 V Operating distance 150m Band working frequency ISM : 433,100-434,790 MHz y t approx. hours Autonom a 20°C: 20