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Specification:Working Pressure Range: 0-10 Bar, matching with all pumpsRelay Capacity: 220V AC 10A.Output signal: active output, to provide pump 220V, start the pump below 1.5KW directly.Fluid Temperature: 80 degreesWaterproof: IP466Long Life: can be used continuously for more than 20 million times.Socket type: International three flat pins plugWiring:(3 wires)White: PositiveBlack: NegativeGreen&Yellow: GroundOverall Size: 85x52x112mmCable length: the Long one is 88cm ; the short one is 35cm.Package Size: 12x9.3x9.8cm(LxWxH)Features:- Pressure transimitter inside, stable and accuracy.- Switch of the pump during water shortage and on with water.- MCU micro computer process chip, safe and intelligent control.- One-click set up on/off limit.Package included:1 x Pressure Switch1 x English user maual