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).
Thermco Products Inc NIST compliant, factory certified glass Spirit thermometer, -100 deg./50 deg.C, 1.0C div, TOTAL imm, certified at -78 deg.C, -20 deg.C, 0 deg.C, 4 deg.C, 25 deg.C, 37 deg.C, 305mm
Thermco Certified Thermometers are used in temperature verification and calibration procedures. These instruments can be used to calibrate Liquid-In- Glass, RTD, Thermistors, Thermocouples, and Bi-Metal Thermometers. The certified thermometers are carefully inspected to insure they conform to exact specifications and are certified against NlST standards. Each thermometer is furnished with a document proving traceability and a felt-lined leatherette storage case.
Grainger Digital Food Service Thermometer 1 L
The Taylor 14F309 digital food service thermometer is a pocket-sized thermometer designed for commercial kitchen use. It features a thin tip probe for faster response and easy insertion into food, an LCD display that shows the temperature reading, and preset temperature buttons that alert when minimum and maximum safe temperatures are reached. The thermometer is accurate to ±1°F from -40 to 450°F. It runs on a single LR44 button cell battery. Key features include the pocket clip, rotating display, and antimicrobial touch buttons. The Taylor 14F309 allows cooks to easily monitor food temperatures for food safety.
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 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.
Chemglass Life Sciences Thermometer, Non-Mercury, 10/30 Joint, 76mm Immersion, -10°C to 250°C
Thermometer, Non-Mercury, 10/30 Joint, 76mm Immersion, -10¿C to 250¿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 1¿ subdivisions. Immersion is measured from the bottom of the joint to the bottom of the mercury bulb.
Essendant Refrigerator/Freezer Monitoring Thermometer, -20F to 80F
Prevent food spoilage by accurately monitoring your refrigerator and freezer interior temperatures. Large Celsius and Fahrenheit scales enable at-a-glance reads. Shatter-resistant lens minimizes the potential for breakage. Thermometer may be mounted horizontally or vertically.
Cole-Parmer Digi-Sense General Purpose Liquid-In-Glass Thermometer; -20 to 110C, 76mm Immersion, Organic Liquid Fill SKU 9026003
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.
Thermco Products Inc THERMO SPIRTFIL -30TO 0C NIST
30/0C x 0.5C, Spirit filled thermometer, safety coated, NISTtraceable
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.
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
