The idea behind a PID controller is that you measure the difference between the current temperature and the desired temperature known as the setpoint.

PID temperature control 4 Articles See A Cheap Smoker Get An Automation Power Up September 24, 2016 by Donald Papp 11 Comments ...

Significant research work has been carried out to improve the performance of closed loop response with PID controller so that it can be used for real time temperature control system using SCADA ...

Carbolite has announced the launch of AriesPlus, a touchscreen temperature controller for use in laboratory and industrial ...