Water level controller unit, 1 Float Sensors, 1 User Manual with all technical details, 1 Pack mounting screw, 1 warranty card. Working : As shown in the above diagram float sensors.,When tank is full it will automatically off and when tank is empty user has to on it manually. The tank starts filling up.When the water level reaches to the higher level, the top level sensor sense. the motor automatically gets switched off.No Man power is required. Manual switch available. Power on LED Indication Provided. Motor start stop LED Indications. Product Descriptions : Sensing Elements: Float sensors, so that it is free from oxidation. long life. Supply voltage : 220-270 V AC, Suitable up to 2HP Motor. Also suitable for single phase MCB starter panel, submersible motor. See diagram above in picture for connections. You can connect with and without starter panel. We have tested our product and all our product passes through all necessary test before sell. Automatic water level controller is of much used in homes, hospital, industries. Use of this product saves water, saves electricity and save times. Helps in preventing overflow of water from the overhead tank. long service Life Contact Details If you need further details or if you have any query fell free to contact us. Company : Epntek Labs