TX3 Series compact temperature controller Features： Input:RTD;. On/Off control, Normal PID, Auto-tune PID adjusting. Optional control output: Relay, SSR Control Output Relay Output (AC 250V/3A, or, DC30V/3A) Measuring Accuracy: 0.5%FS+ 2 digit Power Consumption < 1.5VA Power Supply AC: 85-260V ( 50Hz-60Hz) Ambient Temperature 0-50℃ 45-85%RH