This water tank overflow alarm helps in saving water and electrical energy. The computerized ringing bell of the alarm keeps you alert every time water overflows out of your tank. Lot of times it happens motor is left running even after your water tank is completely filled as you are unaware about it. This leads to excessive loss of water and wastage of power as well. You must install this alarm on your tank to decrease the wastage of power and electricity. You can place the alarm anywhere as per your convenience.