ITEM NAME:Water detector water monitor water sensor water overflow water leakage detector Description: Sensitive water alarm with 50cm water level detector wire, when there is water flow through the floater of wire, the alarm will generate a loud alarm sound with led light (120-130db). 2-in-1 function: Can be used as a water overflow alarm and a water shortage alarm. The defaut is a water overflow alarm, when water emerge the floater, it will alarm. If you want it to be a water shortage alarm, you just need to install the floater down. Battery operated,.Sensitive water alarm with 50cm water level detector wire, when there is water flow through the floater of wire, the alarm will generate a loud alarm sound with led light (120-130db). Suit for machine room, swimming pool, water tank, aquarium tank, water purifier, etc.