Universal power supply 24 to 240 VAC/VDC with LED status light, Triple Thread Screw off Cover, Dual Conduit Entries, DP/DT Relay contacts, Selectable Fail-Safe Protection, USDA Approved Powder Coated Finish, Flush Mount Probe with build-up shield. Hazardous Location Approved, C/US listed for Class II, Groups E, F, G.