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).
Essendant Smead Manila End Tab File Pockets with Tear Resistant Gussets, 3.5" Expansion, Letter Size, Manila, 10/Box
Economical choice for filing depositions lengthy government reports or other paper-intensive records Fully lined gussets reinforced with tear resistant material at the top adds strength to the point of greatest wear Straight-cut tab for color-coded indexing Made of manila stock great for everyday use Pockets will hold standard top tab folders without bulging Tear Resistant Lined Gussets Pocket/Wallet Type- Files/Papers Size- Letter Overall Expansion- 3 5 Color(s)- Manila
Cole-Parmer Digi-Sense General Purpose Liquid-In-Glass Thermometer; -10 to 260C, 76mm Immersion, Organic Liquid Fill
These thermometers are inexpensive and safe for use in laboratories, universities, food/beverage, environmental, wastewater, petrochemical, pharmaceutical and many other general-purpose applications. Choose from partial immersion or total immersion thermometers. Thermometers feature permanently fused markings, blue spirit liquid, white background glass; are also individually serial numbered. Include a ring top and a statement of accuracy supplied by manufacturer.
Cole-Parmer Digi-Sense Ultra Low Liquid-In-Glass Thermometer; -100 to 50C, 76mm Immersion
These thermometers are inexpensive and safe for use in laboratories, universities, food/beverage, environmental, wastewater, petrochemical, pharmaceutical and many other general-purpose applications. Choose from partial immersion or total immersion thermometers. Thermometers feature permanently fused markings, blue spirit liquid, white background glass; are also individually serial numbered. Include a ring top and a statement of accuracy supplied by manufacturer.
Cole-Parmer Digi-Sense Freezer Verification Thermometer; -30 to 1C, 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.
USA Scientific Inc Direct Therm Cryo-Tags, 1/2"
Direct Thermal Cryo-Tags, green labels for 1.5-2.0 mL tubes, 1/2inch, 4000/roll. For direct thermal printers.
USA Scientific Inc Direct Therm Cryo-Tags, 1/2"
Direct Thermal Cryo-Tags, yellow labels for 1.5-2.0 mL tubes, 1/2inch, 4000/roll. For direct thermal printers.
Essendant Pendaflex Convertible End Tab File Pockets, 3.5" Expansion, Letter Size, Manila, 25/Box
A sturdy versatile office essential Long-wearing reinforced rip-proof tape gusset tops Two-ply split-score tab allows for the conversion from end tab shelf pocket to a top tab file pocket Use for inactive shelf filing or fold back for drawer filing Drop front provides quick access to contents Closed sides protect contents 11 pt Manila stock Pocket/Wallet Type- Files/Papers Size- Letter Overall Expansion- 3 5 Color(s)- Manila
Cole-Parmer Taylor 497J Metal Dial Thermometer, 12", -60 to 120F, 30% to 80% RH
Giant, oversized face has bold, easy-to-read numerals. Made of metal for durability and is weather resistant. Thermometer easily mounts to walls or any other flat surface. Dual-scale thermometer reads in both C and F. Temperature scale has maximum contrast for ease of reading in low lighting conditions. Rectangle thermometers are 12" high and have a spirit filled glass tube.