A-B Rockwell Automation 802T-AMTP. Plug In Oiltight Limit Switch, Metal, 10 A Standard Energy, Rotary Lever Arm, 4 Circuits, Conduit Entry, Standard Contacts, 2 Normally Open Contacts, 2 Normally Closed Contacts, Standard Low Temprature, 18C, 110 C High Temp Limit, Snap Acting, 1/2" NPT Thread