Delhi Traderss Water Over Flow Tank Alarm With Voice Sound Overflow New Water Over Flow Tank Alarm With Voice Sound Overflow - Water Alarms Is An Ideal Equipment That Is Used To Control The Wastage Of Power & Water - Easy Installations - No Use Of Battery Now For This Product - Alarm With A Swwet Voice That Alerts You Even If You Are Not Near To The Alarm' - Indication And "Attn. Water Tank Is Full Or Panni Ki Tanki Bhar Gayi Hai " Indication Through Voice Alarm Output. - Never Gives Electric Shock Due To Dc Uses :- This Water Level Indicator Can Be Used In Houses, Apartments, Clinics, Hotels, Lodges, Restaurents, Educational Institutions, Hospitals, Factories Hostels Etc How To Use :- * Once The Lead Is Inter Connected To The Predetermined Position In The Tank, The Plugged Equipment May Start The Pump Motor. Thereby, When The Water Reaches To The Predetermined Position The Equipment Give Alarm To Switch Off The Motor.