Product code: Water flow switch Maximum operating current: 1A (Max) Working voltage: DC24 V; AC220V Power: 10W, 20W, 50W Allowable pressure resistance: below 2.5MPa Temperature range for use: 0 ℃~80 ℃ Flow range: 5-300 L/min (customizable) Line length: customizable The water flow switch is mainly used for flow detection of central air conditioning (water coolers), heating machines, and heat pump units, also known as target flow switch