... alarms,contact capacity 5A@250V AC4)PID control;ON/OFF controlOptional Features1) RS485 interface with ... (96*96*10mm) F Control methodPID control reverse action (heating)F PID control direct action (colding)DHeating ... of temperature &humidity field, including primarily: temperature controllers, M I cable, thermocouple components,temperature sensors, thermocouples & RTDs (Resistance Temperature Detectors ...