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HomeOur ProductsUnited Tru-Blue II Rockwell Hardness Testing System
United Tru-Blue II Rockwell Hardness Testing System

Since 1984, United has manufactured computer-controlled closed loop Rockwell Hardness Testers. Our second generation Rockwell Hardness Tester, the Tru-Blue II is the lowest priced US manufactured closed loop tester that meets ASTM E18, ISO 6508 specifications and NIST recommendations.

The Tru-Blue II Hardness Tester comes standard with a Direct Certification of the hardware calibration with NIST traceability and a one-year indirect calibration for customer specified hardness scales. Along with a user friendly control panel, the tester can be put into operation without the need for an initial on-site calibration or manufacturers assistance!

Having no dead weights, pivot points and knife edges to move out of adjustment, the United Tru-Blue II Hardness Tester can be moved to a new location without having to be re-calibrated. When mounted on United’s optional mobile stand, the Tru-Blue II Hardness Tester becomes portable for use in different departments.