Warranty : 1 Year Manufacturer. Warranty Service : Repair or Replacement. Package Contain : 1 Water Level Controller Unit. 1 float sensor. 1 user manual with technical details. Product Descriptions : Working : As shown in the diagram put a float sensor on the tank. When the water level in the tank becomes low, the motor switches on automatically. The tank starts filling up. When the water level reaches to the higher level, the motor automatically gets switched off. Water level indication provided to see water level in tank. Motor ON OFF indication provided. High quality ABS Enclosure. No man power is required as it is operated as fully automatic. Supply voltage : 220-270 V AC, Suitable to 0.1 HP to 2.0 HP Motor. Relay : 15 A Also suitable for single phase MCB starter panel & submersible motor. Auto and manual switch available. In auto mode, the motor starts and stops automatically. In the manual mode, motor start and stop with manual switch, No additional wiring required to operate motor in manual. Sensing Element. High quality water proof float sensor provided Applications : Applicable to under ground tank, overhead tank, pressure pump, tube well and deep boring. Automatic water level controllers are of much use in homes, hospitals, industries. Use of this product saves water, saves electricity and saves time. Helps in preventing overflow of water from the overhead tank. long service Life. All signals passes in sensors through the AC filter circuit that improve life of sensor, Isolated supply provided Sensor fault detection provided, if sensor got failed LED start blinking Electrolysis free design