United Electric (UE) P/N 1XSWLLTL1-W073, -40 to 450 F Set Point Range, Local Stem Sensor, 4" Sensor Length, SPST 8-50 VDC at 100 mA Discrete Input Powered Switch, 2-Wire Discrete Input Power for 24 and 48 VDC Logic Solver Supply Power, Programmable Over E