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Monitor Temperature & Humidity of Equipment in Delicate Areas With USB Connected Sensor
THUM - USB Temperature/Humidity Sensor
THUM - USB Temperature/Humidity Sensor
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What's Included
THUM - USB Temperature/Humidity Sensor
Item# 15250
Price: Normally $159.99 
Hot Deal $118.07
Free shipping on orders over $175 - See Details


  • External temperature and humidity sensor
  • Delivers data to your PC via USB
  • Included software triggers email when temperature or humidity reaches alarm levels
  • Powered by the USB port

Essential Info

Monitor the temperature and humidity in your server room, equipment closet, or work area using a simple and reliable device. The THUM USB Temperature/Humidity Sensor connects to your PC through an available USB port, delivering accurate real-time temperature and humidity data without any required interaction. The included software stores all readings to an Access database and can be set up to email you if your designated alarm point is reached, so if your server room becomes too hot or if the humidity exceeds a safe point in your equipment rack, you'll be notified immediately. You can also access this information by logging in remotely from any Internet-connected computer.

What's Included

  • 1x - Sensor
  • 1x - USB cable
  • 1x - Software CD
  • More Info

    Connect to Your Home Automation System
    The THUM USB Temperature/Humidity Sensor is compatible with HomeSeer V2 home control software, HCA Standard, and HCA Plus, so if you have one of these systems set up in your home, you can program the system to perform specific tasks, such as shutting down servers during an alarm situation.

    Software Report Options
    Using sampling periods ranging from 30 seconds to 30 minutes (as designated by the user), the included software can generate a running graph of the last 20 data points. It can also export the data to CSV (comma separated), dBase III, dBase IV, HTML, Excel, or another Access file so you can do your own analysis of the data. The program also generates HTML pages that can be automatically saved to your web server in order to provide worldwide access to the current temperature and relative humidity data.



    Manufacturer:Practical Design Group, LLC
    Manufacturer Product No.:THUM V 1.4
    Dimensions:2.8" x 2" x 1.25"
    Temperature Range:-40° F to 125° F (-40° C to 51° C)
    Temperature Accuracy:±0.72° F (±0.4° C)
    Humidity Range:0% to 100%
    Humidity Accuracy:±2% RH @ 10% to 90%
    Selectable Time Between Measurements:10 seconds and 3600 seconds (60 minutes)
    Supported Data Export Options:Access (*.mdb), dbase (*.dbf), Excel(*.xls), html (*.htm), and CSV (or text, *.csv, *.txt)
    Software Minimum System Requirements:Pentium 300 MHz; 128 MB RAM; USB 1.1 or USB 2 port; Windows 2000, Windows XP; Windows 2003 server; Internet Explorer 4; Web server and Internet connection
    Warranty:30 days, limited


    What's Included       
    What's Included       


    29 Ratings
    5 star: 66%  (19)
    4 star: 17%  (5)
    3 star: 3%  (1)
    2 star: 0%  (0)
    1 star: 14%  (4)
    Average Customer Rating
    (29 customer ratings)
    Share your thoughts with other customers
    Doug -- frisco, Texas   8/13/2013
    Works as described. Running on a small HP server, in a closet with Audio/Video Gear for my Media Room. I have HCA Plus running on this same server which uses the Thum to test the temperature and then runs a small Air Conditioning unit via an Insteon I/C relay in this closet when temperature hits a certain level and then turns off when it hits another level. I can also see the exact temperature from my Smartphone via HCA Plus or any PC too... Exactly what I needed.
    GEORGE W. BIRMI -- huntersville, NC   5/16/2013
    I bought the THUM for a project that includes the Raspberry Pi to monitor temperature and humidity in a vacation home. It works perfectly!!! Practical Design Group was very supportive in quickly providing drivers for the Raspberry Pi hardware environment. I was able to modify their existing Linux package Perl scripts very quickly to accomplish all of my objectives. The readings are very stable and very accurate. My solution did not require the use of a powered USB hub external to the Raspberry Pi. KUDOS to Practical Design Group - well done ! A great product.
    DOUGLAS -- fond du lac, WI   3/3/2013
    We have not been able to download it. The instructions and technical are very poor. We have to hire a professional to help us with it.
    MANMOHAN -- new york, NY   12/29/2012
    Great product, straightforward and simple to install and use. Interface is excellent as well and values are accurate.
    WILLIAM -- jupiter, FL   4/6/2012
    The unit works great. However, the software could stand some hardening. Worked fine until I had a problem and tried to reinstall it. Forget it. Finally got it working again with the help of customer support.
    MARK -- arlington, VA   11/28/2011
    Simple and easy setup. Does exactly what it says.
    CHRISTOPHER -- running springs, CA   11/27/2010
    doesn't work well with windows 7 AVG 11 sees it's software as a virus
    SPORTS -- lowell, MA   11/5/2010
    this is a good product that does what it says it will do. it is easy to install on the server and the software works and show the temperature and humidity every time interval. Shawn
    ROBERT -- oakbrook terrace, IL   9/30/2010
    works perfectly as described. the output HTML and associated graphics are easily placed into various web parts or other global monitoring web pages.
    SHERRY -- charlotte, NC   7/12/2010
    Works great as advertised.
    ANDREA -- baulkham hills bc, XX   6/1/2010
    Easy to install, works well.
    DAVE -- alamo, CA   4/19/2010
    The device works fine, but its the software that makes it robust. It's able to store all of our data to SQL and email us alerts whenever our server room gets above our set temp of 80 degrees. Will purchase other units for other server rooms.
    STEVEN -- morris, IL   4/16/2010
    Quick shipment, and was like described. Will order from this vender. Thanks Steve
    AL DEVRIES C/O -- minneapolis, MN   6/23/2009
    The only functionality I miss from the much more expensive appliance that used to do this for us, is there's no way (built in) to set continual reminders until the sensor comes back into spec. While this is obviously as much a lfaw with me, since 1 notice should be all that's required, I would much prefer it keep reminding me every 15 minutes or so to decrease the chances that the only notification gets missed.
    KEN -- orlando, FL   5/30/2009
    Works great! Is dependable and we've integrated into our District infrastructure...we can even check the temperature of our computer room over the web from home!
    JAMES -- madison, AL   9/6/2008
    Simple effective and inexpensive. Easy to install and configure. Works very well. Looks a bit toy like.
    RANDY -- novato, CA   5/17/2008
    Easy to adjust settings. Lots of control features, like emailing of alarms. Reasonably priced considering it includes software too.
    EDWARD -- clayton, NC   2/8/2008
    fantastic product!! performs as expected...

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