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Extech EXTRH300 EXTECH RH300 - Humidity Meter with Dew Point

Free shipping on orders over $29.99

$114.67

$ 56 .99 $56.99

In Stock

About this item

  • Dual LCD for simultaneous display of Relative Humidity and Temperature Temperature is °C/°F


PSYCHROMETER, DIGITAL


Glenn Wilson
Reviewed in the United States on November 15, 2023
This has always been my go to when i need dew point reading
Chris J.
Reviewed in the United States on January 8, 2019
Was able to get a quick and accurate rh and temp reading for my mold inspections.
Daniel Williamson
Reviewed in the United States on August 22, 2018
These are excellent hand held meters without the expense of bigger units.
Tom8osauce
Reviewed in Canada on May 10, 2018
These are the humidity meters that we use for work. We don't use the measured dew point, instead we do our own calculations to determine it (I find that the measured dew point is off).This meter is very easy to use. Just make sure that you aren't holding the meter too close to your face (otherwise your breath will skew the results).
Brian
Reviewed in Canada on February 12, 2018
Seems kinda cheap but works ok.
Harrington
Reviewed in the United States on September 13, 2017
Only used product twice in crawlspace. Casing is weak, view window easily scratches. RH/DP way off. Should come calibrated. Should include calibration canisters for calibration, instead there's an addition charge for that item. I will be returning this product. I could see it may be useful to some industries, but not for contscko
Phil Bondi
Reviewed in the United States on October 11, 2017
Works perfectly for my application.
Plaza
Reviewed in the United States on September 16, 2015
Works great. I lost my Extech pocket model so this is a replacement for it. I like the feature for closing off the ports on the sensor tip. I tend to have the instrument in my truck or in a briefcase so this feature is welcomed. The larger display is much easier to read for me.
José Avendaño
Reviewed in the United States on January 31, 2014
This psychrometer is portable and easy to use. Their measurements are quite accurate, but take time to stabilize. The thermocouple connector is quite useful. This meter has multiple functions such as humidity, temperature, temperature difference and dewpoint.
TFB2020
Reviewed in the United States on September 18, 2012
This hand held device works OK, it will tell you RH and Dew point very well but the temperature is always 8 to 10 degrees lower than actural room temps.If you really need true reading, don't purchase this one spend more cake and buy a better unit.
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