Min rated working voltage: DC 5V~24V; Max working current: 15mA (DC 5V); Working voltage range: DC 5~18V; Load capability: <=10mA (DC 5V); Working temperature: <=80'C; Humidity range: 35~90%RH; Water pressure: <1.75Mpa; Storage temperature: -25~80'C; Storage humidity: 25~95%RH Inside diameter: 3 cm outside diameter: 4 cm pipe thread length is: 2 cm