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).
Ace Glass, Inc. Thermometer, -10 to 200°C, 12" length, 76mm immersion
-10 to 200C enviro-safe economy thermometer with a 76mm immersion length. 12 inches long. Thermometer is filled with organic black liquid, and is made from lead-free glass. Does not contain mercury. Comes with a NIST traceable statement of accuracy.
Ace Glass, Inc. Thermometer, 0 to 230°F, 12in length, 76mm immersion, accuracy ±2°F
76mm immersion thermometer ranging from 0 to 230F. Thermometer is 12 in length and has an accuracy of 2F. In case of breakage this PFA coated thermometer will contain the organic black liquid filling. Thermometer comes with a NIST traceable statement of accuracy.
Ace Glass, Inc. Thermometer, -20 to 150°C, 12" length, total immersion(organic blue spirit)
-20 to 150C, total immersion, enviro-safe economy thermometer. 12 inches long. Thermometer is filled with organic black liquid, and is made from lead-free glass. Does not contain mercury. Comes with a NIST traceable statement of accuracy.
Cole-Parmer Digi-Sense ASTM Like Liquid-In-Glass Thermometer; 9C / Low-Pensky-Martens, 57mm Immersion, -5 to 110C, 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.
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 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 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.
Hach Company Thermometer, Enviro-Safe, Non-Mercury, -10 to 260°C
Enviro-Safe non-Mercury thermometers feature an exclusive biodegradable liquid and dye. Easy to read, aesthetically distinctive due to dark green liquid and permanently fused markings. Each thermometer, individually calibrated against NIST traceable equipment, identified by unique serial number for ISO9000 or other quality systems.
Thermco Products Inc THERMO SPIRTFIL -30TO 0C NIST
30/0C x 0.5C, Spirit filled thermometer, safety coated, NISTtraceable
Cole-Parmer Digi-Sense Ultra Low Liquid-In-Glass Thermometer; -100 to 50C, Total 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 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 Thermometer, 2 Bottle Probes
High accuracy dual channel thermometers feature 0.01° high resolution with accuracy of ± 0.30°C. Individual channels provide simultaneous monitoring of temperatures in separate locations. Display exact time and date when a min/max reading occurred and alarm sounded. Min/Max temperatures are programmable in 0.1°C increments over entire range of -50° up to +70°C. Temperature buffered solution probes contain a non-hazardous glycol mixture that eliminates rapid temperature changes when opening refrigerator or freezer door.
Available with one miniature size sensor that is chemical resistance and waterproof for use in water baths, incubators or dry block heaters. Supplied with Traceable Calibration Certificate (NIST), stand, mounting strips and battery.
Interworld Highway LLC Tequipment Net Net Fluke 51-2 Thermometer Series II
Digital Thermometer, 210 To 1200 Deg C JType, 200 To 1372 Deg C KType, 250 To 400 Deg C TType, 150. Relative time clock on MIN, MAX, and AVG provides a time reference for major events. Electronic Offset function allows compensation of thermocouple errors to maximize overall accuracy. Measures J, K, T, and E-types of thermocouples. Readout in °C, °F, or Kelvin (K). Splash and dust resistant case protected by impact absorbing holster. User-friendly front panel is easy to set up and operate. Sleep mode increases battery life; typical 1000-hour battery life. Battery door allows easy battery replacement without breaking the calibration seal. Optional ToolPak accessory allows the thermometer to hang from any metal object (with the rare earth magnet) or secure around a pipe (with hook-and-loop straps) for hands-free operation
Thermco Products Inc ASTM NM THERM FC -20-150C
ASTM S1C thermometer (Blue spirit) 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.