"This hygrometer makes it easy to read the relative humidity in the atmosphere. 0% to 100% humidity can be easily read on the face of the hygrometer. p>"

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"A standard hygrometer using the wet bulb and dry bulb method to determine air humidity. Two red liquid-filled thermometers are secured to the plastic scale plates. Water is supplied to the wet bulb thermometer by a siphon reservoir. Black temperature scales for easy reading. Graduated from 10ºF to 120ºF and -10ºC to 50ºC. p>"

"This instrument can be wall mounted inside or outside for easy readings when determining air humidity. It reads humidity from 10% to 90%, as well as temperature from -20ºC to 40ºC. p>"