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H-B Instrument™ FRIO-Temp™ Mercury Oven Thermometers

Mercury fill, yellow back glass

Manufacturer:  H-B Instrument™ 20685RMD

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Catalog No. 13-202-634

This item has been discontinued by the manufacturer and is no longer available. Please call customer service for assistance: 1-800-766-7000.
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Includes: Statement of Accuracy traceable to NIST (USA) and DKD (Europe), unique serial number, and hook-and-loop and magnet attachments.



  • Standard PTFE coating
  • Fine glass bead bottle fill
  • Accuracy: 1° or 2°C, depending on unit
  • Divisions: 1, 2 or 4, depending on unit



50°C to 200°C
5.7 in.
2°C; 4°C above 130°C
145 mm
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