Transmitter protection level IP65 Receiver protection level IP44 Transmitter dimensions 234x156x141 mm Receiver dimensions 170x500x90 mmm Transmitter weight 1,1 Kg Working temperature -20/+55°C Voltage applicable to the contacts 30vDC Operating distance 150m Band working frequency ISM : 433,100-434,750 MHz Approximate battery life Autonomy a 20°C: 20