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    Extech Instruments Humidity And Temperature Datalogger

    Model # RHT20|Store SKU # 1000845078

    Overview
    Specifications
    Reviews

    Overview

    Model # RHT20 Store SKU # 1000845078

    The RHT20 is a Humidity Temperature Datalogger that records up to 16,000 Humidity and 16,000 Temperature readings with a user programmable sample rate. Dew Point indication via the included Windows-compatible software. LCD displays current temperature and humidity readings plus Min/Max and Alarm status. Long battery life. Place or mount the datalogger in monitoring location (storage bin, truck, cargo hold, freezer, temperature-controlled room, etc.). Datalogger records temperature and humidity at sample rate set by user. Connect the datalogger to your PC via the USB interface to retrieve readings. Datalogger displays the current Humidty and Temperature plus Min/Max and alarm status so it can viewed anytime during the recording process. Complete with battery, mounting bracket, and software.

    1. Up to 16,000 readings for RH/Temp and user-programmable sample rate
    1. USB interface for easy setup and data download
    1. Selectable data sampling rate: 1 second to 24 hours
    1. User-programmable alarm thresholds for RH and Temperature
    1. LCD displays current readings, Min/Max, and alarm status

    Specifications

    Dimensions

    Assembled Depth (in inches)
    1.2
    Assembled Height (in inches)
    3.7
    Assembled Weight (in lbs)
    0.2
    Assembled Width (in inches)
    1.9
    Packaged Depth (in inches)
    5.91
    Packaged Height (in inches)
    9.06
    Packaged Weight (In lbs)
    0.8
    Packaged Width (in inches)
    2.96

    Details

    Country of Origin
    CN-China

    Warranty / Certifications

    1 year
    Humidity And Temperature DataloggerPhoto of productThe RHT20 is a Humidity Temperature Datalogger that records up to 16,000 Humidity and 16,000 Temperature readings with a user programmable sample rate. Dew Point indication via the included Windows-compatible software. LCD displays current temperature and humidity readings plus Min/Max and Alarm status. Long battery life. Place or mount the datalogger in monitoring location (storage bin, truck, cargo hold, freezer, temperature-controlled room, etc.). Datalogger records temperature and humidity at sample rate set by user. Connect the datalogger to your PC via the USB interface to retrieve readings. Datalogger displays the current Humidty and Temperature plus Min/Max and alarm status so it can viewed anytime during the recording process. Complete with battery, mounting bracket, and software.
    Extech Instruments
    1000845078
    CAD139.99
    The Home Depot Canada
    Humidity And Temperature Datalogger is rated 3.0 out of 5 by 3.
    • y_2019, m_10, d_13, h_21
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    Rated 1 out of 5 by from Not what I’m looking for to do what I need... Not what I’m looking for to do what I need
    Date published: 2019-08-13
    Rated 4 out of 5 by from 4 Star Review Rating provided by a verified purchaser
    Date published: 2017-05-01
    Rated 4 out of 5 by from Works well, best for continuous use. Overall, it works well - there's minimum fuss installing the PC software, the data logger connects to the PC without problems, recorder setup is fairly intuitive, although reading the manual helps, and downloading, saving, and interpreting data recordings is easy and works well. One feature I particularly like is you can do a area zoom on the chart to zero in on interesting readings, as well as examine the data as a table and save it to an Excel compatible spreadsheet. It comes with 2 mini-CDs for the manual and software, a battery, a plastic holster that can be permanently mounted and a locking ring to lock the recorder into the holster. The recording setup is highly configurable, recording rates from every second for a maximum of 4.5 hours to once a day for a maximum of 44 years, except the real maximum is however long the battery lasts. There is a programmable yellow alarm light for temperature or humidity out of range to remind you to download and check the data, and a red recording light that can be set to flash once a minute when recording. You have to use the PC software to reset the data, and can have it start recording immediately or manually on the next button press. The unit itself is simple to operate - the display which shows either temperature or relative humidity, one button switches between the two readings, and a min/max button shows the extremes. All other operations, including setting the time and switching between Fahrenheit and Celcius display, require a PC connection. Now on to the caveats. The manual is dated 2009. The most recent PC software available is dated 2011. It was last updated for Windows 7. Since this device can't be used without the PC software I'm concerned about obsolescence due to lack of software updates. I was pleased to find out that when I tested the software on the Windows 10 Technical Preview that it installed more easily than on Windows 7 and worked just as well. Based on this, the software should be good for at least Windows 8 and 10. Next, the battery. It's an unusual and expensive LS-14250. The stated battery life is 3 months. The battery cover is screwed on, taking more effort to change the battery. There's no power switch. The only way to preserve battery life is to remove the battery or leave the USB cable connected to a PC. I will be removing the battery after completing my recordings. I got this primarily to check the temperature fluctuations in my refrigerator and freezer. One thing I noted is the specified accuracy at freezer temperatures is +/- 3.6 degrees, which isn't a precise as I'd hoped for. It did show that my refrigerator freezer temperature varied between -2 and +5 degrees with an average of +2.3 degrees. My chest freezer varied from +4 to +5 degrees, so I need to turn it down a notch. This unit works well, but seems more designed for continuous commercial use than for occasional home use. [This review was collected as part of a promotion.]
    Date published: 2015-02-22
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