OMRON E5EN-R3MTD-500-N AC/DC24 1/8 DIN Temp Controller, On/Off Or PID. More details: Digital Temperature Controller, Thermocouple/RTD/Analog Sensor Type, Input Voltage AC/DC24, Length (In.) 3.77, Width (In.) 1.88, Depth (In.) 3.11, Control Mode On/Off or 2-PID with Auto-Tune, Control Period 0.5 sec., 1 to 99 sec., DIN Type 1/8, Hysteresis 0.1 to 999.9 EU, Proportional Band 0.1 to 999.9 EU, Setting Accuracy + / - 0.3 Percent of PV, Alarms 3, Power Consumption 5 VA/3 W, Switch Function SPST-NO, Temp. Range Based on Input, Standards CE/UL/CSA/EN