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.
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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2005
Philadelphia Instruments & Controls Inc. All Rights Reserved.
