The DTC-S series 4-Phase Temperature and Time Controller uses Pulse Width Modulation (PWM) to control power input and provides four settings of 25%, 50%, 75%, and 100%. The output temperature varies depending on the heater device (power density). Time control can be set to 1, 2, 4, and 8 hours. It is small, lightweight, and easy to control and can be used with various heater products.