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).
Grainger MABIS Digital Thermometer, Digital
The MABIS Digital Thermometer is a digital thermometer designed for oral, rectal or underarm temperature measurement. It features a flexible tip for comfort, an easy-to-read LCD display, auto-off to conserve battery life, and a memory recall of the last temperature taken. The thermometer measures temperatures from 89.6 to 109.0°F with ±0.2°F accuracy. It is compact, lightweight, and runs on one LR41 button cell battery (included). This digital thermometer is ideal for home use and provides fast, accurate temperature readings.
Cole-Parmer Ashcroft A935AF2 Adjustable Angle Glass Thermometer, 3.5" Stem; 0/120F
FEATURES
- Mercury free blue liquid in glass with magnifying lens for easy readability
- Molded Valox - V-shaped black case for ranges up to and including 300°F
- Die cast black aluminum V-shaped case for ranges above 300°F
- Glass front excludes dust and dirt
- White aluminum scale with bold black graduations and figures
- Accuracy is 0.1% of full scale
- Easy adjustment permits case and stem to be rotated 360°
- 9" scale is standard
- 1-1/4" - 18" NEF swivel nut
Alkali Scientific Bi-directional Liquid Transfer
Our 5L high efficiency shaker flasks are ideal for medium size scale up work They are inhigh efficiencyin in that a 5L flask has 230mm diameter footprint allowing for more of them to fit on a shaker platform The geometry of the flasks also allows for higher shaker speeds without damaging the cells Faster shaker speeds means better gas exchange higher growth rates and more yield per flask This product features pre-assembled tubing connectors and gas exchange filters allowing for the movement of liquid in and out of the Erlenmeyer flask with minimal risk of contamination Many customers have realized significant cost savings by switching to aseptic transfer systems 5L High Efficiency Erlenmeyer Flask 1 system per double wrapped sterile bag - 4 systems per case Flask made of USP grade VI virgin polycarbonate Untreated super smooth interior surface ideal for suspended cultures Attached bi-directional transfer cap Attached thermoplastic elastomer (TPE) external transfer tube No at
Alkali Scientific Bi-directional Liquid Transfer
Our 5L high efficiency shaker flasks are ideal for medium size scale up work They are inhigh efficiencyin in that a 5L flask has 230mm diameter footprint allowing for more of them to fit on a shaker platform The geometry of the flasks also allows for higher shaker speeds without damaging the cells Faster shaker speeds means better gas exchange higher growth rates and more yield per flask This product features pre-assembled tubing connectors and gas exchange filters allowing for the movement of liquid in and out of the Erlenmeyer flask with minimal risk of contamination Many customers have realized significant cost savings by switching to aseptic transfer systems 5L High Efficiency Erlenmeyer Flask 1 system per double wrapped sterile bag - 4 systems per case Flask made of USP grade VI virgin polycarbonate Untreated super smooth interior surface ideal for suspended cultures Attached bi-directional transfer cap Attached thermoplastic elastomer (TPE) external transfer tube Male
Alkali Scientific Bi-directional Liquid Transfer Cap System for 3L High Efficiency Erlenmeyer Flasks, White, with TPE Tube (50cm 1/8" ID 1/4" OD), Vent Filter (0.22 μm Φ24mm), Sterile, 1/pk, 4/cs
Our pre-installed on the High Efficiency Erlenmeyer Flask,which realizes the closed transfer of liquid and reduces the risk of external contami-nation during the process of capping and screwing. Closed system reduces the risks of contamination during liquid transfer. One-piece construction of caps and connectors reduces the risk of leakage and media residue. Caps of various diameters are available and aseptic welding of liquid inlet tubing under normal conditions is supported. High-quality materials and smooth inner wall of the tubing provide an excellent transfer performance. Sterilized by E-beam, SAL=10^-6. Endotoxin-free, and no ingredients of animal origin. Individually packaged in sterile bag.
Andwin Scientific IR THERMOMETER GUN W/LASER
The Traceable Infrared Thermometer Gun features a small, lightweight design that enables users to take temperature readings of any surface in a quick moment. This product features a laser sighting beam that allows direct aim at target surface even f
Hach Company Thermometer, Non-Mercury, -5 to 45°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.
