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When testing or certifying pressure monitoring devices, the calibration you perform is only as good as the master instrument you use for comparison. That’s why Ashcroft has carefully engineered the Type 1082 and 1084 test gauges for sustained accuracy and high reliability. Available in 4 ½-, 6-, and 8 ½-in. 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-in. Type 1084 “pocket” test gauge is the smallest portable master gauge available, covering ranges to 1,000 psi with 0.5% FS accuracy.