Manual Thermometers
Mercury, non-mercury (liquid in glass), or bimetallic thermometers with analog displays, for general and application-specific use, with various temperature-range capacities and accuracies; may be traceable or certified to international standards.
In 1714, the mercury-in-glass thermometer was invented in Europe by physicist Daniel Gabriel Fahrenheit. Typically, the mercury is contained in a reservoir that opens to narrow glass tube. The distance that the mercury flows into the tube is dependent on the temperature to which the thermometer is subjected. The space above the mercury may be filled with air or an inert gas, or it may be a partial vacuum.
Thermometers are calibrated by exposing them to a known temperature and then marking the height of the mercury at that temperature. For example, one might calibrate to the freezing temperature of water (0°C or 32°F) by placing the thermometer in a mixture of ice and water. Then the thermometer could be submerged in boiling water to determine the point where the water changes from a liquid to a vapor (100°C or 212°F).
Mercury thermometers are still considered to be some of the most accurate temperature indicators. They can be used for a wide range of temperatures, from -37°C to 356°C (-35°F to 673°F). Modifications such as adding an inert gas above the mercury or replacing the glass with fused quartz can extend the upper temperature limit to as high as 800°C (1,470°F).
Mercury cannot be used below -38.83°C (-37.89°F), the temperature at which it becomes a solid. Moreover, nitrogen in the thermometer can flow down into the column and become trapped if the mercury solidifies, which makes the thermometer unusable. Use a thermometer that contains a mercury-thallium alloy for measuring lower meteorological temperatures – it will remain liquid to -61.1°C (-78.0°F).
Cole-Parmer Digi-Sense Calibrated Liquid-In-Glass Thermometer; -1 to 51C, 76mm Immersion, Organic Liquid Fill
These thermometers are ideal for use in applications where a very precise accurate temperature measurement is required. Thermometers are individually calibrated to NIST standards at specific temperatures and supplied with an NIST report of calibration stating corrections to one-tenth the smallest division. Thermometers feature triangular anti-roll fitting, permanently fused markings, blue spirit liquid, white background glass; are also individually serial numbered. Include an NIST-traceable statement of accuracy and a triangular-style antiroll fitting.
Cole-Parmer Digi-Sense Calibrated Liquid-In-Glass Thermometer; -1 to 101C, 76mm Immersion, Organic Liquid Fill
These thermometers are ideal for use in applications where a very precise accurate temperature measurement is required. Thermometers are individually calibrated to NIST standards at specific temperatures and supplied with an NIST report of calibration stating corrections to one-tenth the smallest division. Thermometers feature triangular anti-roll fitting, permanently fused markings, blue spirit liquid, white background glass; are also individually serial numbered. Include an NIST-traceable statement of accuracy and a triangular-style antiroll fitting.
Cole-Parmer Digi-Sense Oven Verification Thermometer; 20 to 130C, PFA Coated
Accurately monitor temperatures in freezers, refrigerators, incubators, ovens, and other environments where stability is required. These thermometers are supplied in a media-filled unbreakable plastic bottle and can be removed from the bottle for recalibration. Use the magnetic attachment with pressure-sensitive backing to attach the bottle to a metal wall or door. Thermometers feature permanently fused markings, blue spirit liquid, white background glass; are also individually serial numbered. Include an statement of accuracy and a triangular-style antiroll fitting.
Research Products International Corp Traceable Refrigerator Thermometer
Economical refrigerator thermometer has a temperature range from -9.9?C to 55.0?C (14.2?F to 131.0?F). Readings can be displayed in either ?C or ?F. Accuracy is +/-0.5?C with a resolution of 0.1?C. Display updates every thirty seconds for convenient temperature monitoring. Compact size allows placement in many locations. Supplied with battery, suction cup mount and calibration ceritificate.
Chemglass Life Sciences Thermometer, -10 to 250°C In 2°C Subdivision, Overall Length = 225mm
Thermometer, -10 to 250°C In 2°C Subdivision, Overall Length = 225mm. Bulb immersion, mineral spirit filled, thermometer with engraved stem. Stem OD is 5.5mm to 6.0mm with overall length as listed. Each thermometer is supplied with a #106 Viton O-ring for suspension of thermometer in open distillation systems.
Ace Glass, Inc. Thermometer, -10 to 150°C, organic filled, yellow backing, 8 inch length, 50mm immersion
Thermometer, -10 to 150°C, organic filled, yellow backing, 8 inch length, 50mm immersion
Ace Glass, Inc. Thermometer, -100 to 50c, 12" length, 76mm immersion
Thermometer, -100 to 50c, 12" length, 76mm immersion
Ace Glass, Inc. Thermometer, -100 to 50c, 12" length, total immersion
Thermometer, -100 to 50c, 12" length, total immersion
USA Scientific Inc Direct Therm CryoTag 1.05x0.5
Direct Thermal Cryo-Tags, red labels for 0.5 mL tubes, 1.05 inL x 0.5 inch W, 1000/roll. For direct thermal printers.
USA Scientific Inc Direct Therm Solveresist label
Direct Thermal Solvent-Resistant labels, white, for 1.5 mL tubes, 1.5inch L x 0.5inch W, 750/roll. For direct thermal printers.
USA Scientific Inc Direct Therm Cryo-Tags, 1/2"
Direct Thermal Cryo-Tags, red labels for 1.5-2.0 mL tubes, 1/2inch, 4000/roll. For direct thermal printers.
USA Scientific Inc Direct Therm Cryo-Tags, red
Direct Thermal Combo Cryo-Tags, red, 1.5 inch L x 0.5 inch W and 3/8 inch diameter, 500 each/roll. For direct thermal printers.
Med Vet International Medline Thermometer, Hud1647, Each
Clear housing with "easy read" red liquid column Fahrenheit and Celsius scales from 50 degrees to 120 degrees and 10 degrees to 50 degrees respectively Probe fits most temperature ports and aerosol tee adaptors