877-2078, CAL, CAL MAXVU16 1/16 DIN PID Temperature Controller, 48 x 48mm 1 Input, 3 Output Relay, SSR, 24 V ac/dc Supply Voltage CAL MAXVU16 1/16 DIN PID Temperature Controller, 48 x 48mm 1 Input, 3 Output Relay, SSR, 24 V ac/dc Supply Voltage