Bourdon Tube Pressure Gauges, Monel Safety Pattern Series EN 837-1 Model: 263.30 Specifications according to data sheet: PM 02.04 Measuring System: Monel Case filling: with Nominal size: 4" Measuring range: gauge pressure range Scale range: 0/16 bar Process Connection: 1/2 NPT Connector location: lower mount Window: laminated safety glass Pointer: standard pointer Accuracy Class: class 1.0 Material pressure element: Measuring System MONEL Case filling fluid: Glycerine Pressure Gauge Standard: International (standard Europe) Manufacturer logo: *WIKA* with Serial number QR code with extended serial number on dial Inspection certificate 3.1 per EN 10204 ITEM# 14403482