50mm common pressure gauge: 1.50mm,2'' 2.with double scale 3.clean ... 4bar,60psi For General purpose of measurement Dial size:2"Pressure Range: 15-10,000psi, vacuum or compound availableSocket: ... thread: NPT , BSP, BSPT, PT, ZG, or other special specificationBourdon tube: Copper alloyCase: Black steelBezel: Standard press-on bezelWindow ... the neat and clean work environment. 50mm common pressure gauge