Detailed Product Description bimetal thermometerCase: stainless steel, steelDiameter: 1-1/2"Inlet thread: 1/4" NPT ,BSPT,BSP or according to customers orderConnection: stainless steel. center back male connectionStem diameter(mm):Ø6-Ø12Stem length:1" ~10" or according to customer orderAccuracy: 2%, 1.6% ,1%