This gauge features aluminum case construction to resist corrosion and impact in demanding applications. This listing is for each. Technical Specification Item Pressure Gauge Gauge Application Test Gauge Nominal Dial Size 6 Basic Gauge Case Material Aluminum Basic Gauge Wetted Parts Monel Gauge Connection Type MNPT Gauge Connection Size 1/4 Gauge Connection Location Bottom Gauge Primary Range Units psi Gauge Primary Range Values 0 to 2000 Gauge Accuracy +/-0.25% Pressure and Vacuum Gauge Type Pressure Gauge Gauge Panel Mountable No Liquid Filled No Gauge Primary Range Smallest Graduation 5 Gauge Case Material Aluminum Gauge Primary Range Numbered Graduations 200 Gauge Case Color Black Basic Gauge Socket Material Monel Gauge Socket Material Monel Basic Gauge Sensor Material Monel Gauge Sensor Material Monel Gauge Lens Material Glass Basic Gauge Lens Material Glass Operating Temp. Range -40 Degrees to 150 Degrees F Calibration Certificate Included Yes, NIST with Data Series 1082