Manual Thermometers
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).
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Filtered Search Results
Fisherbrand™ Red Spirit Filled Total Immersion Thermometers
A general purpose/stirring thermometer for a wide application of laboratory needs. Fisherbrand™ Red Spirit Filled Total Immersion Thermometers have a white backing for readability.
Product Type | Liquid Filled Thermometer |
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Thermometer Fill | Red Spirit |
For Use With (Application) | General use |
Fisherbrand™ Spirit-filled Low Temperature Total Immersion Thermometer
Immerses up to 300mm. Fisherbrand™ Spirit-filled Total Immersion Low Temperature Thermometer includes a white background with a non-roll fitting.
Diameter (Metric) Probe | 7 mm |
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Length (Metric) | 300 mm |
Product Type | Low Temperature Thermometer |
Thermometer Fill | Spirit |
Material | Glass |
For Use With (Application) | General use |
H-B Instrument™ Easy-Read™ General Purpose Liquid-In-Glass Thermometers: Partial Immersion
Easy-to-read partial immersion thermometers.
Includes | Multilanguage instructions, statement of accuracy |
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Thermometer Fill | Enviro-Safe™ Liquid |
Material | Glass |
Certifications/Compliance | Traceable to NIST. Includes a multi-language (English, French, German, Italian, Portuguese, and Spanish) Statement of Accuracy and Traceability. |
For Use With (Application) | Ideal for use in chemical/petrochemical laboratories, universities, scientific institutions, food and beverage processing, pharmaceutical and medical industries, dairies, breweries and distilleries. |
H-B Instrument™ Durac™ Bi-Metallic Thermometer
With 2.5% or 2° accuracy—ideal for measuring temperatures in pipes, griddles and hot plates.
Includes | Stainless Steel probe, multilanguage statement of test and calibration, beaker clip with built in adjustment tool |
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Accuracy | 0.01 |
Display Dimensions | 1.7 in. (44 mm) |
Lens Material | Polycarbonate |
Dial Size (Metric) | 44 mm |
Material | Metal |
Dial Size (English) | 1.75 in. |
For Use With (Application) | Petrochemical, oil and gas, waste water, pharmaceutical, compost, food and beverage storage and processing, asphalt, mining, utilities, automotive, marine, photographic |
Immersion Length | 50 mm in liquids or 100 mm in gas |
Alla France™ Precision Thermometers
Use these thermometers for a variety of applications. Alla France™ Precision Thermometers are manufactured using yellow Sodocalcique glass with a diameter of 6 to 7mm.
Length (Metric) | 305 mm |
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Product Type | Alcohol Thermometer |
Thermometer Fill | Red Liquid |
Immersion Type | Total Immersion |
Material | Glass |
Bottle Fill | Red Liquid |
For Use With (Application) | General use |
Fisherbrand™ -20 to +110 Lo Tox™ Laboratory Immersion Thermometer
Lo Tox™ organic filling is specially chosen to achieve wide temperature span and provide the lowest practical levels of hazard.
Accuracy | ±1°C at 35°C |
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Length (Metric) | 305 mm |
Product Type | Laboratory Immersion Thermometer |
Thermometer Fill | Blue Organic Liquid |
Material | Glass |
Subdivision | 0.5° |
Temperature Range (Metric) | -20°C to +110°C |
Max. Temperature (Metric) | 110°C |
Min. Temperature (Metric) | -20°C |
Brannan™ LO-tox™ Lab Thermometer with 3 Point Traceable Calibration
LO-tox™ blue spirit lab thermometer complete with calibration certificate.
Accuracy | ± 1.5°C at 90°C |
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Length (Metric) | 30.5 cm |
Max. Temperature (English) | 230°F |
Thermometer Fill | Blue Spirit |
Immersion Type | Total Immersion |
Temperature Range (English) | -4°F to +230°F |
Min. Temperature (English) | -4°F |
Material | Glass |
Subdivision | 0.5°C |
Temperature Range (Metric) | -20°C to +110°C |
Max. Temperature (Metric) | +110°C |
Width (Metric) | 1.2 cm |
Min. Temperature (Metric) | -20°C |
Brannan™ LO-tox™ Spirit-filled Partial Immersion Laboratory Thermometer
Manufactured to traceable standards and comes with a blue non-roll top and safety suspension ring. Brannan™ LO-tox™ Spirit-filled Partial Immersion Laboratory Thermometer is a mercury free general purpose/stirring thermometers with a low toxicity brown spirit filling. This filling enables accurate temperature readings to be taken above 300°C.
Includes | Brannan non roll end cap |
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Material | Glass |
For Use With (Application) | General use |
Immersion Length | 76 mm |
Brannan™ LO-tox™ Lab Thermometer with 3 Point UKAS Calibration
Greener Choice Product
This product offers one or more environmental benefits itemized in the U.S. FTC Green Guides.
Learn More About the Greener Choice Program
This product offers one or more environmental benefits itemized in the U.S. FTC Green Guides.
Learn More About the Greener Choice Program
LO-tox™ blue spirit lab thermometer complete with calibration certificate.
Length (Metric) | 30.5 cm |
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Thermometer Fill | Blue Spirit |
Immersion Type | Partial Immersion |
Min. Temperature (English) | -4°F |
Material | Glass |
Subdivision | 1.0°C |
Max. Temperature (Metric) | +110°C |
Width (Metric) | 1.2 cm |
Accuracy | ± 1.5°C at 90°C |
Max. Temperature (English) | 230°F |
Temperature Range (English) | -4°F to +230°F |
Temperature Range (Metric) | -20°C to +110°C |
Min. Temperature (Metric) | -20°C |
Immersion Length | 76 mm |
Includes | 10/30 Ground joint with Celsius scale |
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Thermometer Fill | Red Organic Liquid |
Material | Glass |
Subdivision | 1° |
Min. Temperature (Metric) | -10°C |
Bel-Art™ H-B Durac Plus Ultra Low Liquid-In-Glass Laboratory Thermometer
Bel-Art, H-B Durac Plus Liquid-in-Glass Laboratory Thermometers are partial and total immersion thermometers for Low Temperature Applications.
Quickfit™ Blue Spirit Thermometer with Integral Cone
Complies with ISO 386 standards. Quickfit™ Blue Spirit Thermometer with Integral Cone features an integral ground glass cone on the stem which allows direct fitting into Quickfit™ jointed apparatus. Filled with high visibility blue spirit.
Bel-Art™ H-B Frio-Temp Freezer Verification Thermometer with Individual Calibration Report
These mercury free, calibrated thermometers cover ranges from -90°C to +25°C and are calibrated at one or two specific temperatures.
Fisherbrand™ Red Spirit Filled Partial Immersion Thermometers
A general purpose/stirring thermometer for a wide application of laboratory needs. Fisherbrand™ Red Spirit Filled Partial Immersion Thermometers have a white backing for readability.
Length (Metric) | 305 mm |
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Product Type | Liquid Filled Thermometer |
Thermometer Fill | Red Spirit |
Immersion Type | Partial Immersion |
For Use With (Application) | General use |
Min. Temperature (Metric) | -10°C |
Immersion Length | 76 mm |