B&B Electronics 485OPDR. Operating temperature range (T-T): -40 - 80 °C, Storage temperature range (T-T): -40 - 85 °C, Operating relative humidity range: 0 - 95 %. Dimensions (WxDxH): 25 x 79 x 95 mm. Input voltage: 10 - 30 V. Housing material: Plastic. Certification: IP 20 CE, FCC cULus, E222870