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    Extech Instruments Hydro-Thermometer Psychrometer

    Model # RH300|Store SKU # 1000845090

    Overview
    Specifications
    Reviews

    Overview

    Model # RH300 Store SKU # 1000845090

    With the RH300 you can simultaneously display relative humidity, air temperature and dew point or wet bulb measurements. Compact meter is ideal for field applications. Unique sensor cap closes to protect to protect meter during storage. Advanced features include data hold, selectable auto power off and MAX/MIN/Average reading. Includes two AAA batteries.

    1. Simultaneous display of %RH, Temperature and Dew point or Wet Bulb or Probe Temperature
    1. Wet bulb measurements without slinging
    1. Unique sensor cap design twists to closed position for protection during storage
    1. Switchable F/C temperature units with 0.1 Deg. Resolution
    1. Data Hold freezes current reading on display

    Specifications

    Dimensions

    Assembled Depth (in inches)
    1
    Assembled Height (in inches)
    7
    Assembled Weight (in lbs)
    0.21
    Assembled Width (in inches)
    1.9
    Packaged Depth (in inches)
    9.85
    Packaged Height (in inches)
    1.03
    Packaged Weight (In lbs)
    0.29
    Packaged Width (in inches)
    3.75

    Details

    Country of Origin
    CN-China

    Warranty / Certifications

    6 months
    Hydro-Thermometer PsychrometerPhoto of productWith the RH300 you can simultaneously display relative humidity, air temperature and dew point or wet bulb measurements. Compact meter is ideal for field applications. Unique sensor cap closes to protect to protect meter during storage. Advanced features include data hold, selectable auto power off and MAX/MIN/Average reading. Includes two AAA batteries.
    Extech Instruments
    1000845090
    CAD135
    The Home Depot Canada
    Hydro-Thermometer Psychrometer is rated 3.6 out of 5 by 16.
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    Rated 1 out of 5 by from I just bought a RH300. I turned it on and it reads the inside temperature as 51 degrees when it i... I just bought a RH300. I turned it on and it reads the inside temperature as 51 degrees when it is actually 74 degrees. I know the temperature sensor doesn't work, now I can't trust any other readings. coming from this unit. I'm going to try to return this useless unit. Stick to their green colored pen style unit. It just measures humidity and temp, but its cheaper and it actually works.
    Date published: 2019-01-16
    Rated 1 out of 5 by from 5 degrees low on temp 6% off on RH useless Extech makes some good stuff.this is not one of them 5 degrees low on temp 6% off on RH useless Extech makes some good stuff.this is not one of them
    Date published: 2017-02-28
    Rated 3 out of 5 by from Good for humidity readings This product is a little more complicated than a simple humidity reading. If you are just looking for humidity readings than this is not the product for you but if you want a few more bells and whistles than this will be perfect for you. [This review was collected as part of a promotion.]
    Date published: 2014-12-09
    Rated 4 out of 5 by from Works well and accurately This unit works well, when compared to sling psychrometer. My primary use is for taking atmospheric humidity readings in reportedly haunted houses for the purpose of scientific correlation. Most usual uses would include finding and monitoring temperatures and humidity for specific needs such as a humidor or heating, air conditioning. [This review was collected as part of a promotion.]
    Date published: 2014-11-19
    Rated 4 out of 5 by from Works well - full functionality only with external probe I purchased this thermometer because I needed something to measure humidity, and considered the wet bulb reporting capabilities of this thermometer as a bonus. I initially found this a little confusing to use based on the instructions until I realized that many of the features are only enabled if you have the optional external temperature probe. Once I figured that out, I found it easy to use. As it ships (no external probe), it reports humidity, temperature, dew point, and wet bulb temperature. If you purchase the optional external probe (which I eventually did), then it can also report the second temperature, the temperature delta (main unit T1 to external probe T2), and the dew point delta to the external probe (external probe temperature minus the dew point). I do wish this came with a case to carry store & transport the main unit and the external temperature probe in (the end of the external probe is a little sharp), but otherwise this does everything I want it to. [This review was collected as part of a promotion.]
    Date published: 2014-11-10
    Rated 4 out of 5 by from Handy to check damp places Was real anxious to try this unit out. Temperature function is correct within +/- 2 degrees F. However, the humidity constantly reads 10% too high. Here in the southwest that's significant. I checked this unit several times with an old fashioned sling psychrometer. I can still monitor under my house where I can't easily spin around a wet bulb mercury sling unit. There should be someway to calibrate this pocket psychrometer without purchasing an expensive kit described in the instructions. No such luck. [This review was collected as part of a promotion.]
    Date published: 2014-10-16
    Rated 2 out of 5 by from don't understand it i can't really evaluate the product because the instructions aren't clear to me and the device isn't user friendly. also you have to buy a separate kit to calibrate the hygrometer. [This review was collected as part of a promotion.]
    Date published: 2014-10-10
    Rated 4 out of 5 by from Easy Way to measure humidity in rooms I use this to measure the humidity around the house. Some of the other measurements are more sophisticated than I need. [This review was collected as part of a promotion.]
    Date published: 2014-09-26
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