This high quality 100mm dial pressure gauge uses bourdon tube technology to measure pressure, typically up to 1000 bar. The robust stainless steel gauge is suitable for a wide range of applications in the general process industry. All gauges are manufactured in accordance with the requirements of the EN837-1 European standard. For applications where you may have vibration we would recommend the optional liquid filling. Accuracy (EN 837-1): Class 1.0 (+/- 1% FSD) Case: 304 stainless steel with blowout and vent Connection & Tube: 316 stainless steel Case Protection: IP 65 Process Connection: Back Window: Laminated safety glass Dial: Aluminum, black figures, white background Unit of Scale: psi & bar Pointer: Aluminum, black Custom versions and ranges up 4000 Bar are available by special request.