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4040, Traceable® Min/Max Clock/Humidity Monitor Digital Thermometer, 32 to 122°F / 0 to 50°C with a NIST Traceable® Calibration Certificate (each)
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EXTECH Digital Hygrometer: Indoor/Outdoor, Temp, Humidity, Includes NIST- Traceable Certificate - 5PE78|445715-NIST - Grainger
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