United Electric (UE) P/N 1XTX00TTL1-W073, -40 to 450 F Range, Local Stem Sensor, 4" Sensor Length, 2-Wire 4-20mA HART Output, 20-40 VDC Loop Power Supply, Backlit LCD Display, 1/2"NPT Compression for 0.25" O.D. Sensor, Explosion Proof Indicating Temperat