Quantity: 2 pieces Low pressure: Maximum power: 10w Limit voltage: 110 VDC Maximum switching current: 0.5 A Minimum collision voltage: 220 VDC Maximum load current: 0.5 A Temperature range: -20C~+60C high pressure: Maximum power: 50w Limit voltage: 220 VDC Maximum switching current: 0.5 A Minimum collision voltage: 300 VDC Maximum load current: 1 A Temperature range: -50~+90 How it works: Use a magnet to detect a reed switch. The float switch is mainly composed of a reed switch and a float. There is magnetic material in the float. When the float rises and falls with the water level, it will trigger the magnetic spring switch to detect the liquid position Wide range of applications: The float switch can be used in water heating equipment such as water dispensers, water heaters and humidifiers. It can also be used in water towers, drainage basins, water tanks, breeding ponds, etc. Please note: Since the switch can carry a very small current (0.5A), a relay or contactor is required when connecting the load, relays or contactors are not included here.