... of a wide range of applications. A float switch is a device used to sense the level ... of liquid within a tank. The switch may actuate a pump, an indicator, an alarm ... ., reef aquarium, fluid control, ice machines, coffee pots, marine, automotive, automobiles, tropical fish tanks, evaporator coils, condensation ... 107(DC 5V,10mA)To install the float switch, please note that you will need to be ...