Specifications:PID ControlMain Control Output - RelayAccepts TC and RTDAccepts 0-10 V, 0/4-20 mA or 0-50 mV SignalsOn Demand Auto-Tuning of PID Settings2 User Programmable Function ButtonsDual Relay Alarms1/8 DIN SizeControllers Meet IP65 Requirements100 to 240 VAC Power Input