When testing or certifying pressure monitoring devices, the calibration you perform is only as good as the master instrument you use for comparison. The Type 1082 and 1084 test gauges have been engineered for sustained accuracy and high reliability. Available in 4½", 6" and 8½" diameters, the Type 1082 boasts ?0.25%FS accuracy in ranges from vacuum through 10,000 psi. An external zero adjuster, temperature compensation and Monel® wetted parts ensure precision and media compatibility. For field calibration, the 3" Type 1084 "pocket" test gauge is the smallest portable master gauge available, covering ranges to 1000 psi with 0.5 percent FS accuracy.