Sper Scientific* Dial Hygrometer / Thermometers

The dial hygrometer / thermometer is ideal for classroom, lab, or industrial use. Large, clear, 20 to 100% RH scale on 4 in. dial. Easily read from a distance. Uses a precise synthetic hair hygrometer with an accuracy of +/-5%. Plastic face meets food industry requirements. Inner dial shows temperature using a bimetal thermometer, with an accuracy of +/-2°F. Wall mounts. Cat. No. 350-98842 includes a NIST traceable certificate of compliance. Weight: 3.7 oz. 5 year warranty.
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Certificate of Compliance: No

Certificate of Compliance: Yes