1.Universal Input 2. PID auto-tuning 3. 0.2%FS 4. Output Relay, SSR, ... control accuracy at the maximum of ± 0.1oC; 2. Double PID control functions, capable of controlling heating and cooling; 3. Programmable ... single-phase or 3-phase controlControlControl mode: PID, ON/OFF, Phase PID, continuous PID, self-regulated PID, fuzzy PID, location portion controlSet range: percentage band ...