CH402 AC85‑264V High Precision Smart PID Temperature Controller Thermostat Relay TC/RTD Input Features: This smart digital temperature controller uses advanced special chip for industrial instruments of high precision, strong anti-interference ability. High reliability, multi-type sensor input, using wide range switching power supply. It has the new fuzzy control combined with the advanced PID control algorithm, good control of rapid change and long lag time. Advanced non-overshoot self-tuning scheme for convenient use, also with communication function. The controller has small size and stable performance, easy to operate. Specifications: Temperature Range: 0~1300℃ Basic Error: ± 0.5%±1digit of full range input Resolution: 1℃, 0.1℃ Sampling Speed: 3 times/sec Alarm Output: Relay contact AC250V 3A (resistive) Control Output: Relay contact AC250V 3A (resistive) Logic Level: DC 0/12V (with solid state relay) Zero Crossing Trigger Pulse: Optocoupler SCR output 1A 600V; 0-10mA current output (load resistance is less than 600Ω); 0-20mA current output (load resistance is less than 600Ω); 4-20mA current output (load resistance is less than 600) Control Mode: Fuzzy PID control, position control Operating Temperature: 0~50℃ Operating Humidity: <85%RH Power Consumption: <5VA Package Includes: 1 x Temperature Controller 2 x Screws