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This 15.4in (390mm) MA-421C ASTM 2C General Use Mercury Thermometer has a total measurement range from -5° to 300°C with graduations of 1.0°C. Immersion is 3in (76mm).
The MA-421CT Thermometer is the same, but also comes with a NIST Traceable Certificate of Calibration.
MA-421C: 0.5lbs (0.23kg)
MA-421CT: 0.2lbs (0.09kg)
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