Amprobe THWD-10 Relative Humidity and Temperature Meter

  • Highly stable humidity measurement ±2.5%
  • Processing relative humidity and temperature measurements simultaneously
  • Two temperature sensors (internal and external)
  • Wet/dry bulb, dew point measurement
  • Easy selection between K/NTC/K-DP
  • MAX/MIN/Average/Relative Zero and HOLD functions


With the Amprobe THWD-10 Relative Humidity and Temperature Meter, perform precise temperature and humidity measurements for HVAC, indoor air quality and environmental applications. The large LCD display, full suite of measuring features and two temperature probes (internal and external) make this product a preferred choice for a professional.


Display 5 digit liquid crystal display (LCD)
Polarity Automatic, positive implied, negative polarity indication
Auto power off 5 minutes
Battery 1.5 V x 4 pcs AAA size



What’s Included

  • THWD-10
  • 4 batteries (installed)
  • Type-k thermocouple
  • USB wireless module


Datasheet »
Product Manual »

5 reviews for Amprobe THWD-10 Relative Humidity and Temperature Meter

  1. eyemareader

    worth it

    Faster than earlier versions making it awesome for calculating super heat and sub cooling requirements without having to wait. Yes I know you should wait 20-25 minutes however in the real world that sometimes gets shortened. I like it.

    ✔ Yes, I recommend this product.

  2. HVAC7171

    Great Tool for interior diagnosis

    Very useful for advising on interior ambient conditions to help with customer understanding of system operations and the importance of HVAC Maintenance.

    ✔ Yes, I recommend this product.


    Excellent Tool

    Real quality tool with excellent features. Great for saved reports and files and record keeping. Well designed. Tried and compared others, this it the top.

    ✔ Yes, I recommend this product.

  4. fishinggonebad

    perfect in everyway

    just what we needed for a quick measurement in surgery rooms.

    ✔ Yes, I recommend this product.

  5. DanC

    Unwieldy features

    I was testing some of the buttons but when I wanted to quit no button worked, even on/off so I had to take out a battery. Then I read about holding the Min/Max button for two seconds. The on/off button should always be an emergency exit.

    I have a laboratory mercury thermometer which I consider a reliable reference for temperature. Comparing the THWD-10 with that shows it is about one degree low. That could be in the noise so it is acceptable.

    I have no way to check the relative humidity. I do like its ability to read RH below 10% since I live in Las Vegas in the southwest desert.

    ✔ Yes, I recommend this product.

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