we are offering water level indicator with over flow alarmbenefits: no need to go to roof for checking water levels turn on motor whenever required (not by guessing) use water conservatively, in absence of water supply useful for every homebuilding which has storage of water features: metallic body easy installation long life ultra low current sensing mechanism no maintenance fuse protection power on indication four water levels (25%, 50%, 75% and full) visual indication multi mode switch visual indication on water tank full power off alarm and visual indication on water tank full mains input supply 220 v ac, 50hz.