1.chrome plated or stainless steel case and bezel 2.stainless steel internal. 3.63mm 4.accuracy: 1.6% Case size: 2.5"Case material: 304SSBezel materials: Stainless bayonet and bezelTube and socket: Stianless steelConnection: 1/8, 1/4, 3/8, and 1/2-inch NPT, BSP and PT depend on model and sizeType: BottomScale range: -1 to 0 to 1000kgWindow: PCAccuracy: 1.0, 1.6 and 2.5