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Calibrating a
Thermometer


It is not uncommon for inexpensive thermometers to be off by a degree or two.

You should test every new thermometer against known temperatures (freezing and boiling point of pure water).  Then you will know how much to compensate when taking readings.

Use pure water to be sure it freezes at 0 C and boils at 100 C.

Remember that boiling point is affected by elevation above sea level. 








































CR Scientific

Thermometers, Dual Scale

Celsius and Fahrenheit scales.
Student grade, Glass with Red Spirit (Alcohol)
Length approx. 12 inches (30 cm)




Partial Immersion

Dual Scale, -20 to 110 C and 0 to 230 F
#C850...............$3.20 each

Quantity:


Dual Scale, -20 to 150 C and 0 to 300 F
#C852..............$3.25 each

Quantity:


Total Immersion

Dual Scale, -20 to 110 C and 0 to 230 F
#C851........... $3.30 each
Quantity:


Dual Scale, -20 to 150 C and 0 to 300 F
#C853............$3.35 each
Quantity:



Thermometer Clamp
for use with a Support Stand C140, C150, etc. (Stand sold separately).
$8.25 ea.
Quantity:





Safety reminder: Glass thermometers are fragile. Wear safety goggles.
Never heat a thermometer above its maximum temperature reading.






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