Fully Automatic Water Level Controller

We are offering fully automatic water level controller. Switch on the pump when water level in overhead tank goes below the pre-decided minimum level. Switch off the pump when water level in the overhead tank reaches the pre-decided maximum level. Suitable:- contactor type panel no volt coil contact less than 3amp. Push button auto start time 2-sec. Connection terminal:- 2 - main supply, 2- no volt coil, 4 - start push button, 3-water tank.= 11-wire dimensions in (mm):- w-155, h-210, d-110.