Item:Analog Dial Thermometer; Sensing Element:Bimetal; Dial Size:2 In; Connection Size:1/4 In Npt; Connection Location:Back; Stem Length:4 In; Temp. Range (F):-20 Degreesto 120 Degrees; Temp. Range (C):-30 Degreesto 50 Degrees; Accuracy:+/-1%; Stem Dia.:1/4 In; Case:Hermetically Sealed; Case Material:Stainless Steel; Stem Material:Stainless Steel; Window Material:Glass; Adjustments:External; Coil Finish:Silicone fit Superior Time Response And Vibration Dampening; Manufacturers Warranty Length:Limited 3 Yr;-Precision Measuring-Analog Dial Thermometer, 2 In Dial Size, Bimetal, 1/4 In Npt Connection Size,20400007608