The temperature sensor is how the application to the motor to control the motor start and

stopThermocouple Coolant Temperature Sensor are generally type, directly to the input of the controller can be, the controller can buy a digital model is about more than one hundred pieces of it, the above temperature calibration can be performed, you can set the temperature control point, see the instructions to the controller generally has one or two pairs of independent contacts (normally open and normally closed), contactor coil power supply via the contact temperature controller, you can control the motor, if you use motor is a single-phase power is relatively small, or even directly to the power supply via a temperature controller contacts powering the motor.