These auto-tuned PID controllers feature a digital display (96x103) format, J-type thermocouple input an analogue 0-20mA heating output, and an alarm relay output. These infrared sensors provide a simple and easy way for remote temperature control of static or production-line products located in open spaces and are best used in infrared heating installations. They operate by measuring the target's heat radiation emissions and converting these readings into a configurable signal controller.