Product Name : Water Level Sensor Float Switch; Material: stainless steel.Max Switching Voltage : DC220V; Max Switching Power : 10W; The float switch can be installed at the top or bottom of the tank, depending on whether you want to detect water rising or falling. Floating ball switch is a kind of liquid level control device with simple structure and convenient use. It has the advantages of small volume and long working life compared with general mechanical switch. When selecting the right material, any kind of liquid, pressure and temperature can be used. Widely Applications: For tank / pump water level control;For fish tank and aquarium system; Used for water level control of household appliances;Used for water level control of swimming pool, fountain, pond, waterfall, etc. Please Note : Float switch can not directly control solenoid valve or high power relay, AC contactor, etc. Small relays are required to transition. --------------0