Brand N/A Model HS09 Quantity 1 Color White Material PVC Specification Min rated working voltage: DC 5V~24V; Max working current: 15mA (DC 5V); Working voltage range: DC 5~18V; Load capability: Features Lightweight small easy to install; With stainless steel axis in the wheel abrasion resistant; Sealing ring would never leak water; All material meets RoHS standard Application Suitable for water heater automatic water dispenser etc. Other Install it in vertical inclination should not beyond 5 degree; Wire: red: in yellow: out black: GND; Internal diameter: 1.2mm; Frequency: F=73 x Q (Q is L/min); Error: +/-2L/min; Output 4380 pulse after flowing 1L water; Flow range: 1~5L/min English Manual/Spec Yes Packing List 1 x Water flow sensor