Dial size 65mm, 100mm, 150mm & 250mm Accuracy + - 1% of f.S.D Bourdon tube S.S. 316/brass/monel/phosphor bronze Movement S.S. 304/s.S. 316/brass Socket S.S. 316/brass/monel/phosphor bronze Case S.S. 316 snap action bayonet type/die cast aluminium weatherproof with screwed outer bezel, stoved enamel black finish. Mounting Direct with bottom entry/direct with back entry/flush panel with back entry(three hole panel or bracket type)/surface with bottom entry. Thread connection 1/8", 1/4", 3/8", 1/2" bsp/bspt/npt (m) Window Acrylic glass/glass/toughened glass/ shatterproof glass. Joints S.S. Bourdon tube tip and the socket ends are argon arc welded and phosphor bronze bourdon tubes are silver brazed/soldered. Bourdon tubes are heat-treated and stress relieved. Extra fitments Micro zero adjustment pointer/ neoprene blow out disc. Range Pressure upto 1400 kg/sq.Cm, vacuum & compound ranges.