High and low water levels in fire water tanks

WH311 This product has joint control of upper and lower water tanks, sewage pit drainage, and pressure tank water supply control. It is a multifunctional water level controller with a static pressure electronic model: WH311-3M-P0.009. It can automatically replenish water in the water tank, discharge sewage pits, and effectively prevent excessive water level overflow or dehydration. When the voltage is 220V, it will not start due to phase loss, avoiding the water pump from running idle. It is a product suitable for both industrial and household use, widely used in places with water supply control.