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).
Thermco Products Inc Precision Laboratory Thermometer, Red Spirit Filled, Non-Mercury Fractional Degree, 5, 76mm Partial Immersion, 610mm Length
Precision Laboratory Thermometer, Red Spirit Filled, Non-Mercury Fractional Degree, 5, 76mm Partial Immersion, 610mm Length. NIST TraceableNon-Mercury Red Spirit Filled Thermometers. Total and Partial Immersion. Individually Serializedrialized.
Ace Glass, Inc. Thermometer, -20 to 150°C, 12in length, total immersion, accuracy ±1°C, ±1.5°C above 110°C
Thermometer, -20 to 150°C, 12in length, total immersion, accuracy ±1°C, ±1.5°C above 110°C
Cole-Parmer Digi-Sense Calibrated Liquid-In-Glass Thermometer; -10 to 225C, Total 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.
Chemglass Life Sciences Thermometer, Non-Mercury, Total Immersion, -20°C to 150°C, 305mm OAL
Thermometer, Non-Mercury, Total Immersion, -20¿C to 150¿C, 305mm OAL. Thermometer is mineral spirit filled to eliminate workplace and environmental hazards associated with mercury. All ranges have 1¿ subdivisions. Thermometer has a white back and a 6 to 7mm outer diameter.
Sigma Aldrich Fine Chemicals Biosciences Easy-ReadR thermometer tem1EA
Easy-to-read thermometers with black printing on a bright yellow background. filled with contrasting black non-hazardous Enviro-Safe liquid. Calibrated with NIST DKD standards.
Thermco Products Inc NIST compliant, factory certified glass Spirit thermometer, 34.5 deg./46 deg.C, 0.1C div, 76mm imm, certified at 37 deg.C, 44.5 deg.C, 240mm
These spirit-filled glass thermometers meet EPA requirements. Coliform incubator thermometers are designed to use in incubators or baths during coliform tests. Use them to monitor equipment. Each includes an individual serial number and certificate of accuracy. The ACC713BLS is certified and traceable to N.I.S.T.
Ace Glass, Inc. Thermometer, -100 to 50c, 12" length, total immersion
Thermometer, -100 to 50c, 12" length, total immersion
Cole-Parmer Digi-Sense Armored Liquid-In-Glass Thermometer; 20 to 500F, 76mm Immersion, Organic Liquid Fill
Ideal for use in application where thermometers needs added protection from minor shocks. Nickel/plated brass armor shell protects these thermometers from accidental breakage during use and storage. The armor case has a screw cap with ring top and viewing window; the lower section that surrounds the bulb has small openings for circulation. Thermometers feature permanently fused markings, blue spirit liquid, white background glass; are also individually serial numbered. Include statement of accuracy and a triangular-style antiroll fitting.
Ace Glass, Inc. 51mm immersion non-merc thermometer 10/30, -10 to 250c
51mm immersion non-merc thermometer 10/30, -10 to 250c
USA Scientific Inc Direct Therm Cryo-Tags, 3/8"
Direct Thermal Cryo-Tags, red labels for 0.5-2.0 mL tubes, 3/8 in, 4000/roll. For direct thermal printers.
Thermco Products Inc Tissue Flotation Bath Thermometer, -15/105Deg.C x 1.0Deg.C, TOTAL Imm, Spirit
Non-mercury thermometer used in tissue flotation bath to monitor the temperature. The ACC535S1 thermometer lies on the bottom of the bath. It has a rectangular ring attached, so it will not roll. The ring also allows the thermometer scale to face up, so the scale is easy to read the correct temperature. The red liquid in the thermometer is easy to see through the bath liquid
Chemglass Life Sciences Thermometer, Non-Mercury, Variable Immersion, -10°C to 250°C, Immersion Range is 76mm to 178mm 3" to 7"), 510mm OAL
Thermometer, Non-Mercury, Variable Immersion, -10¿C to 250¿C, Immersion Range is 76mm to 178mm 3" to 7"), 510mm OAL. Thermometer is mineral spirit filled to eliminate workplace and environmental hazards associated with mercury. Constructed on two types of tubing sealed together below the scale, where the stem portion is made of very fine bore glass to minimize correction factors at immersion depths other than the mid-point of the stem. The scale portion is made of wide bore glass to facilitate reading of the thermometer. Each thermometer is supplied with an instruction sheet and listing of correction factors. All ranges have 1¿ subdivisions. Thermometer has a white back and a 6 to 7mm outer diameter. Can be used with any Chemglass threaded thermometer adapter.
Chemglass Life Sciences Thermometer, Non-Mercury Low Temperature, Total Immersion, -100°C to 50°C
Thermometer, Non-Mercury Low Temperature, Total Immersion, -100¿C to 50¿C. Thermometer is mineral spirit filled to eliminate workplace and environmental hazards associated with mercury. All ranges have 1¿ subdivisions. Thermometer has a white back and a 6 to 7mm outer diameter. Available in total or partial 76mm (3") immersion.