Thomas Traceable Hygrometer/Thermometer/Barometer/Dew Point Pen, 32 to 122 degree F, 0 to 50 degree C, 10 to 95% RH

The Thomas Traceable hygrometer/thermometer/barometer/dew point pen is a thermometer, humidity gauge, and barometer for measuring air temperature, humidity, dew-point temperature, and air pressure. The thermometer measures temperature from 0 to 50 degrees C (30 to 122 degrees F), with an accuracy of + or - 1 degree C. The humidity meter measures humidity from 10 to 95% relative humidity (RH), with an accuracy of + or - 3% mid-range. The dew-point thermometer indicates dew point from -25.3 to 48.9 degrees C (13.5 to 120.1 degrees F). The barometer measures pressure from 0.29 to 32.48 inches of Mercury (inHg), from 10 to 1100 millibars (hPa), and from 7.5 to 825 millimeters of Mercury (mmHg), with an accuracy of + or - 2.5 hPa. The dual display shows humidity/temperature, humidity/dew point, barometer/temperature, or barometer/humidity. A hold button freezes the reading on the display and the unit's memory holds a minimum/maximum reading. The thermometer is traceable to National Institute of Standards and Technology standards, indicating that it is calibrated to International Organization for Standardization (ISO) 17025 levels. This Thomas thermometer is used to monitor air temperature in laboratories, storage rooms, and refrigerators.

Specifications

H is height, the vertical distance from lowest to highest point; W is width, the horizontal distance from left to right; D is depth, the horizontal distance from front to back.

Digital thermometers are instruments used to measure the temperature of air, liquids, or surfaces electronically. They may measure temperature in Celsius, Fahrenheit, or both. Most digital thermometers use thermistors, which are small electronic resistors. Thermistors are made out of metals that conduct electricity within a certain range and become more conductive the warmer they get. A microcontroller inside the thermometer measures this electrical conductivity and converts it to a temperature, which is displayed on an LCD. Digital thermometers are used in a wide range of applications, including in laboratory settings, food service and storage, and in doctors' offices and hospitals.

Thomas Scientific manufactures lab supplies, equipment, s, and instruments for scientific research. It is a registered contractor for the United States Federal Government. The company was founded in 1899 and is headquartered in Philadelphia, PA.

What’s in the Box?

• Thomas Traceable Hygrometer/ Thermometer/ Barometer/Dew-Point Pen
• (4) AAA batteries
• Traceable certificate
• Instructions

• Digital thermometer, hygrometer, and barometer for measuring temperature, humidity, and barometric pressure.
• Measures temperature from 0 to 50 degrees C (30 to 122 degrees F), with an accuracy of + or - 1 degree C.
• Measures humidity from 10 to 95% RH, with an accuracy of + or - 3%.
• Barometer measures pressure in inches of Mercury (inHg), millibars (hPa), and millimeters of Mercury (mmHg).
• Calibrated to ISO 17025 traceability standards for reliability of measurements.