Sierra Instruments, Inc.

The accuracy of your flow instruments plays an essential role in determining efficiency, performance, and cost-savings. Sierra has over 40 years experience in gas flow calibration providing easy, fast, & accurate service, repair, and recalibration for nearly any type of gas, liquid or steam. Sierra will also service most other mass flow meter & controller brands. Read more...

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Buck Research Instruments, LLC

We offer calibrations for all chilled mirror hygrometers, not just the ones we manufacture. We can do verifications of other humidity sensors, too.All of our calibrations are NIST traceable. We can calibrate temperature, pressure and of course dew point temperature and relative humidity. Read more...

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Transcat, Inc.

Based on unparalleled technical capabilities, self-governance, and a long history of thrilled customers, Transcat’s dedication to quality is unmatched in the industry. Read more...

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A.H. Systems Inc.

Annual recalibration is important

• Calibration Frequency Range of 20 Hz to 40 GHz
• Quick Turnaround Times
• Low Measurement Uncertainty
• Custom In-House software for a greater calibration accuracy
• Expert Calibration and Characterization Services Since 1974 - Experience Counts Read more...

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Hoffer Flow Controls, Inc.

Hoffer Flow Controls is pleased to announce it has been granted ISO 17025 accreditation as well as Z540-1 accreditation for their flow meter calibration laboratory (Hoffer Calibration Services, LLC) by the American Association of Laboratory Accreditation (A2LA). Read more...

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Pratt & Whitney Measurement Systems, Inc.

Pratt & Whitney Measurement Systems has the technical capability and the metrology expertise needed to make reliable calibrations of master artifacts, measuring instruments, and gauges. Read more...

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