Parameters: 4-branch pipe, G 1/2 outer teeth, 1-shaped structure, nylon plus glass fiber, waterproof and explosion-proof, heat and cold resistance, 4-branch plastic water flow sensor, water heater water flow sensor, specifications: 58*38*38 mm, can be used as water flow switch, but also can be used to measure flow, divided into two series, three-wire connection: red positive, black as negative, yellow as pulse signal, maximum pressure 1.75 M pa, flow rate 1-30 L/min, if adding temperature control sensor is green, can also be connected with two other lines to control temperature specially, the length of the connection line and the type of connection terminals can be set according to customer requirements.