Features ACCURATE MEASUREMENT:This Vacuum Gauge with pointer type double scale dial can measure bar/psi.Professional sealing design ensures good airtightness and precise measurement with higher accuracy. HIGH QUALITY: The brass parts of the dual scale vacuum gauge have good corrosion resistance, high temperature resistance and durability, which can better protect the internal components. CLEAR READING: The air vacuum gauge features a rigid round dial with a transparent cover. It is easier to read the measurement data and provides better protection against mould damage. EASY INSTALLATION: This is a high quality vacuum gauge with a 1/8 inch threaded connector for mounting. Easy to install, you can quickly put it into use without extra time. WIDE COMPATIBILITY: this vacuum gauge instrument is suitable for measuring air, water, oil, gas and other non-corrosive media. It will not interfere with pressure systems or attack copper alloy components. Specification: Mounting Thread: 1/8 BSPT Range: -1-0Bar, -30-0inHg Product Size: Approx 5.1x4.5x4.5cm / 2x1.8x1.8in Package Weight: Approx 94g Package List: 1 x Vacuum Gauge Package List