Features: This temperature controller uses digital correction system, built-in commonly used thermocouple and thermal resistor nonlinear correction form, high measurement precision. Advanced PID intelligent control algorithm, resistant to overshoot, with auto tuning (AT) function. PID control output SSR level output. Two channel relay output, can realize alarm output or stepping control. It supports RS485 communication interface that adopts standard protocol. Specifications: Power Supply Voltage: 90~260V AC Power Consumption: <4VA Operating Temperature: 0℃~50℃ Operating Humidity: <90%R.H Input Signal Type: Thermal resistor Pt100, Cu100, Cu50, BA1, BA2, G53, thermocouple K, E, S, T, B, R, N, J, Wre325, Wre526 multiple signals compatible input (selected by button set) Measuring Accuracy: ±0.3%F.S Alarm Output: 2 contact relay output, contact capacity 5A/220V AC Control Output: SSR solid-state relay pulse voltage output (DC9V±10%/30mA) Size: 8.6*5.5*4.8cm/3.4*2.2*1.9in Weight: 139g(approx.) Package Includes: 1 x Temperature Controller 1、This temperature controller uses digital correction system, built-in commonly used thermocouple and thermal resistor nonlinear correction form, high measurement precision 2、Advanced PID intelligent control algorithm, resistant to overshoot, with auto tuning (AT) function 3、PID control output SSR level output 4、Two channel relay output, can realize alarm output or stepping control 5、It supports RS485 communication interface that adopts standard protocol