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).
Taylor Precision Products Wall Thermometer
This item has a minimum order quantity of 6 per supplier requirements. Weather resistant and rust proof. Vertically curved design. Easy to read numerals. Blue and Green. Aluminum wall mount bracket
Thermco Products Inc THERMOMETER
NIST traceable - Factory Certified Non-Mercury Glass Thermometers - Spirit Filled, -1/51C x 0.1C Partial immersion, Cert @ 0, 10, 20, 30, 37, 40, 50C
Grainger Cls 2 Trnsfrmr 40VA Enclosed Foot
The Edwards Signaling Class 2 Transformer is a 120V AC input, 14V AC output transformer with a maximum load of 40VA. It has an electrostatic shield between primary and secondary windings to minimize line noise interference. This general purpose transformer steps down 120V AC to 14V AC for powering low voltage devices. It has a steel enclosure with knockouts and is UL listed. The transformer measures 5 x 4 x 3 inches and weighs 4 pounds.
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
Essendant PADAPPLC182PD/PK5PK/C
Designed with resilient floors in mind such as VCT linoleum rubber and vinyls Holds enough finish to easily and swiftly coat the floor Reusable
Cole-Parmer Digi-Sense Armored Liquid-In-Glass Thermometer; 0 to 230F, 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.
Cole-Parmer Digi-Sense Stainless Steel Bimetal Pocket Thermometer, 2" Dial, Poly Lens, 8" Stem, 0 to 220F, 2F Div
Choose the dial size and temperature range on this shock resistant thermometer to meet your specific needs. Factory tested to three points with a 1% accuracy. Hermetically sealed dial stops internal fogging. Minimum immersion: liquids 2" (50 mm), gases 4" (100 mm). Comes with a 304 Stainless Steel dial case and stem.
Cole-Parmer Digi-Sense PFA Safety Coated Liquid-In-Glass Thermometer; 0 to 230F, 76mm Immersion, Organic Liquid Fill
These thermometers are ideal for use in laboratories, universities, food/beverage, environmental, wastewater, and many other general-purpose applications. In the event of breakage, the PTFE coating contains the broken liquid and glass, preventing contamination or injury. Thermometers feature permanently fused markings, blue spirit liquid, white background glass; are also individually serial numbered.
Thermco Products Inc ASTM 120C, Kenimatic Viscosity, 38.6/41.4C, 0.05C div, TOTAL imm, 310mm, certified at 0 deg.C, 40 deg.C, 41 deg.C
ASTM 120C thermometer certified at the ASTM recommended temperatures and calibrated against N.I.S.T. standards. A N.I.S.T. traceable document is completed in the Thermco ISO17025/ILAC accedited laboratory.
Cole-Parmer Digi-Sense ASTM Like Liquid-In-Glass Thermometer; 15F / Low Softening Point, Total Immersion, 32 to 180F, Organic Liquid Fill
These thermometers are precision manufactured to conform to ASTM E-1 specifications except for not being mercury filled. Designed for use in quality control laboratories or when mercury filled thermometers can not be used but where ASTM standards are still needed. ASTM established thermometer standards suited for special applications, and assigned an ASTM number according to each specification. Thermometers feature permanently fused markings, blue spirit liquid, white background glass; are also individually serial numbered.