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).
Chemglass Life Sciences Thermometer, Non-Mercury, Variable Immersion, -10°C to 250°C, Immersion Range is 178mm to 305mm (7" to 12"), 635mm OAL
Thermometer, Non-Mercury, Variable Immersion, -10°C to 250°C, Immersion Range is 178mm to 305mm (7" to 12"), 635mm 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 1º 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, 10/30 Joint, 25mm Immersion, -20°C to 150°C
Thermometer, Non-Mercury, 10/30 Joint, 25mm Immersion, -20°C to 150°C. Thermometer is mineral spirit filled to eliminate workplace and environmental hazards associated with mercury. Thermometer has a white back, a 6 to 7mm outer diameter, and a standard taper 10/30 inner ground joint. All ranges have 1º subdivisions. Immersion is measured from the bottom of the joint to the bottom of the mercury bulb.
Chemglass Life Sciences Thermometer, Non-Mercury, 10/30 Joint, 76mm Immersion, -20°C to 150°C
Thermometer, Non-Mercury, 10/30 Joint, 76mm Immersion, -20°C to 150°C. Thermometer is mineral spirit filled to eliminate workplace and environmental hazards associated with mercury. Thermometer has a white back, a 6 to 7mm outer diameter, and a standard taper 10/30 inner ground joint. All ranges have 1º subdivisions. Immersion is measured from the bottom of the joint to the bottom of the mercury bulb.
Chemglass Life Sciences Thermometer, Non-Mercury, 10/30 Joint, 51mm Immersion, -20°C to 150°C
Thermometer, Non-Mercury, 10/30 Joint, 51mm Immersion, -20°C to 150°C. Thermometer is mineral spirit filled to eliminate workplace and environmental hazards associated with mercury. Thermometer has a white back, a 6 to 7mm outer diameter, and a standard taper 10/30 inner ground joint. All ranges have 1º subdivisions. Immersion is measured from the bottom of the joint to the bottom of the mercury bulb.
Cole-Parmer Digi-Sense Soil Thermometer, 48" L x 0.25" Dia; 0-200F/ -15-90C
Thermometer is ideal for measuring core temperatures in compost piles, hay, soil, or grains. 3" diameter dial for easy reading. Calibrate with external reset screw. Thermometers meet ASME B40.3 standards for leak- and fog-proof operation.Tips are 0.25" dia for fast response.
Cole-Parmer Digi-Sense Calibrated Liquid-In-Glass Thermometer; 30 to 124F, 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 Armored Liquid-In-Glass Thermometer, -40 to 120°F, 76 mm 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, 1.75" Dial, Glass Lens, 8" Stem, -40 to 160F, 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 Calibrated Liquid-In-Glass Thermometer; -1 to 51C, 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.
Research Products International Corp Thermometer, 2 Solid Probe Sensors
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.
Hach Company Clamp, Extension Thermometer
Replacement clamp for use with the Cold Vapor Mercury Test. Hold thermometers and other glass apparatus firmly with this lightweight, safety-adjust clamp. Holds 6.4–12.7mm (1/4–1/2") diameter glass tubing/thermometers up to 178mm (7") from support rod. Tightening wing nut applies tension to the nickel-plated phosphor bronze jaws. Overall length: 210mm (81/4"). If attaching to rods, a 90° clamp holder is required. 1/pk
Hach Company Thermometer, Non-Mercury, 0 to 220°F and -10 to 110°C
Compact and durable, non-mercury thermometers enclosed in a protective nylon case. These thermometers are designed for ruggedness and come in many standard ranges. Suitable for all field and portable uses where an unprotected thermometer may break.
Chemglass Life Sciences Adapter, Thermometer, Inlet, 10° Offset, 29/26 Inner Joint
Adapter, Thermometer, Inlet, 10° Offset, 29/26 Inner Joint. Adapter has a #7 Chem-Thread at the top for vacuum tight seal of plain stem thermometers or any other tube having an O.D. between 4 and 7mm. When used with vertical side neck flasks, thermometers or bleed tubes can be angled into the bottom of the flask. Supplied complete with a compression cap and Viton o-ring.
Med Vet International Probe Cover For Tat-2000 And Tat-5000 Temporal Thermometer, 134203, 50/Pack, 20 Packs
Provides hygiene and comfort during temperature checks Nested stacking inside package allows for quick, hands-free attachment Exergen probe covers have an ergonomic shape and smooth, latex-free surface Fits most Temporal Scanner™ thermometers that use disposables such as the TAT-2000 and the TAT-5000 These covers are disposable, preventing cross-contamination Covers the temperature scanner probe without diminishing accuracy