Description : PP Side Mount Horizontal Water Level Sensor Liquid Float Switch A float switch is a device used to sense the level of liquid within a tank， it may actuate a pump， an indicator， an alarm， or other device. UPP Side Mount Horizontal Water Level Sensor Liquid Float Switchse them with hydroponics， saltwater tank， freshwater tank， gardening， aquariums for power head control， pet bowls， fish tanks， filtration， heating， or what ever your project. Contains no mercury. Introduction : A compact， horizontally mounted float switch which can be configured as a normally-open or normally-closed switch simply by rotating it through 180 in its push fit mounting. When the water level reaches the float， the float moves and an internal magnet activates a sealed reed relay in the device. The sensor is supplied pre-wired with flying output leads. Specification : Contract rating(Max) : 50W Switching voltage(Max) : 220VDC Switching current(Max) : 1.5A Breakdown voltage(Max) : 300VDC Carry current(Max) : 3.0A Contract resistance(Max) : 100 OHM Temperature rating : -20 - +80\u2103 Material : PP Package included : 1 x Liquid float switch