Pocket Case Thermometers

These instruments are supplied complete with a 6" hard aluminum case, pocket clip, and easy refill top.

No. 500
General Testing. -20° F to 120° F with 2° Divisions, red liquid or mercury filled. Rounded bulb

No. 501
General Testing. 0° F to 220° F with 2° Divisions, red liquid or mercury filled.

No. 510
6" Armored case, perforated end. Ranges -20° F to 120° F with 2° Divisions, 0° F to 220° F with 2° Divisions, red liquid or mercury filled.

Did you know?
Daniel Gabriel Fahrenheit was born in GdaNsk, Poland, on May 24, 1686. After studying and traveling he eventually settled in Amsterdam, the Netherlands, where he became a maker of scientific instruments. He discovered a method for cleaning mercury so that it would not stick to a glass tube. This was essential to devising his mercury thermometer.
 

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