Stem Dia. 915 Series with Transmitter RTD, -50 DegF to 750 DegF, Class B Accuracy, PT100 Element, Single, 3-Wire, 4 mA to 20 mA, 2-wire, Upscale Burnout Output, 1/2 in. 915 Series Transmitter RTD,-50 to 750DegF,Class B Accuracy,4 to 20 mA,9in. Stem L,1/4in.