... and Thermocouples. PID temperature controller / PID process control thermostats We specialize in manufacturing Temperature Controllers,thermostat,Humidity ... Refrigeration Controllers,Digital Time Relays and Thermocouples. PID fuzzy control, P, PI, PD, PID, or on/off, ... products are high-level digital temperature controllers. Common Features Front panel: ABS Container: PC+ABS plastic resin casingUse ...