Dwyer Instruments MARK II 40-1-AV-NIST | Molded plastic manometer | Range 0-1.1" w.c. & 0-4200 fpm | Red fluid | .826 sp. gr. | Requires Pitot tube (*sold separately) | With NIST Calibration certificate
The inclined and inclined-vertical variants of Mark II Molded Manometers are available. The Model 25 gage's curved inclined-vertical tube offers greater ranges at lower readings with easier-to-read increments. Throughout its range, the Model 40 inclined gage offers outstanding resolution and linear calibration. Applications involving air velocity and air filter gage are perfect for the Model 40. Both gage types can measure differential pressure and pressure both above and below atmospheric pressure. Two 4-1/2' pieces of transparent plastic tubing, a plastic swing-out stand, and a leveling screw are included with the Model 40 so that it may be used anywhere. Additionally, it has built-in overpressure safety traps and easy-to-use quick shutoff pressure connections.
