Model number andparameters Model number External dimensions Perforation dimensions REX-CH102 48x48x75 mm 450.50x450.50mm REX-CH402 48x96x75mm 450.50x920.50mm REX-CH502 96x48x75mm 920.50x450.50mm REX-CH702 72x72x75mm 680.50x680.50mm REX-CH902 96x96x75mm 920.50x920.50mm General Model number REX-CH series Accuracy 0.5%FS1C Supply voltage 48-240V Input types Thermocouple: K, J, R, S, B, E, N, T, W5Re/W26Re, PLII RTD: Pt100, JPt100 Voltage: 0-5V, 1-5V Current: 0-20mA, 4-20mA Output types Electromagnetic relay + SSR Power consumption AC100-240V: under 10VA; AC24V: under 5VA; DC24V: under 160mA Control method PID, or ON/OFF Setting method Touch switch Indication method 8-segment 4-digital display and LED indication Alarms 1. Alarm quantity: Default is 1pcs, if 2pcs, need to be customized 2. Alarm form: N: No alarm A: Deviation low B: Deviation high C: Deviation high/low D: Band E: Deviation high with hold action F: Deviation low with hold action G: Deviation high/low with hold action H: Proce high J: Proce low K: Proce high with hold action L: Proce low with hold action Operating temperature 0 to 50 C (32 to 122 F) Operating humidity 30-85% RH max, non-condensing Alias name REX-CH series pid temperature controller, intelligent temperature controller