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The MA-158 Concrete Reference Thermometer checks calibration of devices used for temperature determinations in cement and concrete and complies with ASTM C 1064 and E 77. Thermometer is Mercury-filled with black engraved numbers against a yellow background for easy readability. Model is calibrated for 3in (76mm) immersion and includes a certificate with NIST traceability. Purchase the MA-149 for a non-mercury alternative.
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