This plug-n-play controller uses the universal temperature controller GL101B, which can be used as PID temperature controller, On/off temperature controller, or simply as a thermometer/pyrometer with bright LED display and alarm output.
The PID control mode can maintain the temperature within one degree when properly tuned. The on/off control mode is useful for controlling the temperature in a range. Users can set the target temperature and hysteresis band. It will work like a mechanical thermostat with higher accuracy and tighter temperature range.
It has a built-in solid state relay for maximum 2A output and a built-in buzzer for high/low process alarm. It's ideal for charcoal smoker application.