Vukar Single Phase Digital 0.75 Hp Openwell Submersible Motor Starter Panel Board With Dry Run Protection, Overload Protection, Voltage Protection And Water Overflow Timer (OPM-C1) also works in a semi automatic mode. It has an inbuilt timer. Users need to turn on the motor manually, the motor will automatically turn off after the timer. No need to connect external level sensor wiring as it has an inbuilt timer that will turn off the motor automatically based on the timer set by the user.