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, -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
Ace Glass, Inc. Thermometer, 0 to 230°F, 12" length, 76mm immersion
0 to 230F 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.
Essendant Smead Easy Grip Pockets, 3.5" Expansion, Legal Size, Redrope, 25/Box
Easy Grip pockets are designed with patented SmeadGrip Non-Slip Grip to provide twice as much grip as a standard pocket They require less gripping force to pick up out of drawers or pull off shelves These sturdy file pockets feature rollover tear resistant reinforcement on the sides that make them virtually tear proof Closed on three sides to secure and protect documents Pocket/Wallet Type- Files/Papers Size- Legal Overall Expansion- 3 5 Color(s)- Redrope
Revvity Health Sciences Inc Ceramic Beads Pre-Filled 2 mL 96 Deep Well Plates, 1.4 mm and 0.1 mm (2/pk)
Ceramic Beads Pre-Filled 2 mL 96 Deep Well Plates, 1.4 mm and 0.1 mm (2/pk)
Deltatrak Inc CERT REFRIG/FREEZ THERMOMETER, Packaged individually
The 12237 Certified Alarm Thermometer comes with a Min/Max memory, a large, easy-to-read LCD, and high/low alarm settings. The thermometer monitors temperature inside freezers, refrigerators, or cold holding display cases. The sensor has a 3 meter cable and a stainless steel, blunt probe enclosed in a sealed plastic bottle of propylene glycol. This enclosure prevents false alarms because the measurements of the probe are not impacted by rapid temperature fluctuations caused by frequent door openings that occur.Measurement Range -58F to 158F (-50C to 70C) Operating Range 14F to 122F (-10C to 50C) Accuracy 1.0F (-22F to 131F) 0.5C (-30C to 55C); otherwise 1.8F (1.0C) Display Resolution 0.1F/C Display Reading Update 10 seconds. High and Low Alarms with audible buzzer and flashing red light. Display in C/F Certification/Calibration CE mark, NIST traceable, RoHS, WEEE; Manufacturers Certificate of Compliance
Ace Glass, Inc. Thermometer, 0 to 230°F, 12" length, total immersion
0 to 230F, 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.
Ace Glass, Inc. Thermometer, 20 to 300°F, 8" length, 50mm immersion
20 to 300F enviro-safe economy thermometer with a 50mm immersion length. 8 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 300°F, 12" length, total immersion
0 to 300F, 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.