SPECIFICATIONS PID Digital Intelligent Industrial Temperature Controller K Universal Input REX-C100 C400 C700 C900 Thermostat SSR Relay Output Usage: Industrial Type: K Theory: Temperature Controller Style: Standing Station Power: AC100-240V Output: Relay/SSR Model Number4: REX-C900 Model Number3: REX-C700 Model Number2: REX-C410 Model Number1: REX-C400 Model Number: REX-C100 Measure Type: K Measure Type: K,J,E,R,Js,B,N,T,PT00,Cu50 Max Measuring Temperature: 120°C & Above Is Smart Device: NO Display Type: DIGITAL Display Size: 1.9 Inches & Under USER'S MANUAL DOWNLOAD Specifications: Display: Dual display for Celsius (C) Range: -0-400C (Only when with the factory K type thermocouple) Main Output: SSR/Realy PID cooling/heating control 1 RELAY alarm: Normal open, capacity 250V/3A AC or 30V/3A DC 7 different Dual Output combinations with: high / low / high deviation / low deviation /interval / out of interval / breakage alarm Accuracy: 0.5% Input:K,J,E,R,Js,B,N,T,PT00,Cu50 Individually programmable PID control parameters.P, I, d, controlling period, digital filter coefficient, and more SSR control ready to connect Compact design:DIN 1/8 great form-factor to be included/build-in to your product. Alarm output: 1 line output, 7 kinds of alarm mode: high/low/high deviation/low deviation/interval/out of interval/breakage alarm.