Specification: Brand new Type: two two direct-acting valve Shell material: flame retardant ABS plastic Manual verify button ( micro switch ) Size: as picture shown Voltage: DC24V/AC220V Time period (OFF): 0 minutes Discharge time (ON): zero seconds Ambient temperature: -40°C to 60°C Electrical connection: DIN43650A Interface: G1 / 2" inside thread The recent consumption of the largest 4mA Maximum operating pressure: 1 Maximum temperature: 90°C Forging brass valve, circulation aperture of five mm Insulation class: H point Protection grade: IP65 Voltage range: ±10%