About this item Automatic Water Level Indicator With Overflow Buzzer Sound. With Stop Buzzer Button. and 5 Sensor. Four Level water Indication 25%, 50% ,75%, 100%, ,Micro Controller Based Design ,Buzzer off Button For Sound Off Buzzer . Very Easy to Install and Buzzer Sound To Avoid Overflow. Buzzer Acknowledge Switch also Avalable for easy operate Buzzer . Longer Life No Mechanical System /.Avoid Overflow    Product description Package Contains: l. WATER LEVEL INDICATOR with Buzzer 2.FIVE SS SENSOR FOR UP TANK. Item specification: 1.Condition: New: A brand-new, unused and undamaged item that is fully operational and functions as intended. 2.Warranty: 1 Year Seller Warranty 3.Warranty Service: Repair/Replacement Working: Fully Automatic Water Level Indicator For Tank . Suitable For Overhead Tank or Undertank Only. Has LED Indications For All LEvel. Also Has High And Low Level LED Indications To Know Water Level , Corrosion Free Sensors. ,Long Life. Easy To Install. Advanced Embedded Technology. Features: 1.Elegant Looks 2.No Man power Required To operate as Fully Automatic . 3.Avoid Overflow ,Longer Life No Mechanical System 4.Saves Electricity 5.Compact ABS (Virgin) Housing 6. Control Overhead Tank Specifications: 1.Operating voltage 220-250 volts AC. 2. Frequency 50 Hz. sensor installation into water tank water level indicator with buzzer at tank empty Overhead plastic Water tank water level indicator at tank full level with indications