Immersion Temperature Probe RTD Sensor Type Temp Range (F) -76 Degrees to 400 Degrees Temp Range (C) -60 Degrees to 204 Degrees 4 in Probe Length Accuracy +/- 0.15 Degrees C Bare Wire Probe Connector Probe Dia 1/4 In. 317 Stainless Steel Probe Material 1/2 in NPT Process Connection For Use With Wahl Digi-Stem Meter NIST Calibration Certificate Includes All Angle NPT Process Connection Manufacturers Warranty Length 2 yr.