The psychrometric chart displays several quantities: dry bulb temperature, dew point temperature, wet bulb temperature, humidity ratio, specific enthalpy, specific volume, relative humidity, and water vapor pressure being the top nine. Also, barometric pressure (or equivalently, altitude) is given.
Mini Temperature and Humidity Meter With Dew Point and Wet Bulb Temperature W290-PTHM15
Designed specifically for agricultural professionals, the Kestrel 3500 Delta T provides Delta T readings. Delta T is the spread between the wet bulb temperature and the dry bulb temperature, and it offers a quick guide to determining acceptable spraying conditions. When you know Delta T, you ensure that every drop of spray counts.
Supco DSP1000 Digital Psychrometer with Dew Point and Wet Bulb, -22 to 212 Degree F, +/- 0.9 Degree F Accuracy by Supco. $82.00. The DSP1000 provides fast, accurate measurements for analysis of critical environmental conditions. Temperature, Humidity. Wet Bulb Temperature, Dewpoint Temperature, Fast Response, Dual Display, Max Hold, Data Hold Function, No Twirling, No Reading Charts, No Water Necessary. Auto Power Off (Disable Sleep Mode). Backlight, Measures 1.77" width b...
Pyle-Meters Mini Temperature and Humidity Meter with Dew Point and Wet Bulb Temperature, Multicolor
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#Kanomax 2211 Indoor Air Quality Monitor measures dew point, wet bulb temperature, absolute humidity, humidity ratio, and % outside air. Learn more and SHOP: http://www.valuetesters.com/kanomax-2211-01-iaq-spare-probe-for-kanomax-2211.html
An HVAC technician must measure water temperatures, as well as dry bulb and wet bulb temperatures of air. For example, you may have to measure the entering and leaving temperatures for a coil - both for air and for water. Accurate readings can be critical.