AcuRite Digital Humidity and Temperature Monitor with Backlight (01139M)
AcuRite Digital Humidity and Temperature Monitor with Backlight (01139M)
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AcuRite Digital Humidity and Temperature Monitor with Backlight (01139M)

4.7 stars out of 31 reviews
(4.7)|
31 ratings

Key item features

  • Precise Monitoring: Offers enhanced accuracy of +/- 0.5°F and +/- 2-4% RH, ideal for various environments like living rooms, baby rooms, and wine cellars.
  • Rapid Readings: Features an in-unit temperature sensor and a humidity sensor that measures changes every 10 seconds for effective humidity control.
  • Custom Calibration: Allows for area-specific monitoring by enabling sensor calibration to individual rooms or environments for optimal data accuracy.
  • Clear Display: Provides a simple, easy-to-read display with a backlight feature for viewing current conditions day or night.
  • Versatile Placement: Includes multiple mounting options such as tabletop, wall-mountable, and magnet-mountable for convenient placement in any room.
  • Daily Records: Equipped to provide daily updates on high and low temperature/humidity records, allowing comparison with current readings.
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Current price is $19.99
Price when purchased online
  • Free shipping
  • Free 30-day returns

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Columbus, 43215
Arrives by Mon, Mar 2
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Sold and shipped by AcuRite
4.541208791208791 stars out of 5, based on 364 seller reviews(4.5)
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4.7 out of 5 stars
stars31 ratings29 reviews
How item rating is calculated
  1. 5 stars77% (24)
  2. 4 stars19% (6)
  3. 3 stars3% (1)
  4. 2 stars0% (0)
  5. 1 star0% (0)

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Showing 1-3 of 29 reviews

Feb 3, 2026
Lynn
Top Reviewer
Sold and shipped byAcuRite
5 out of 5 stars review

Verified Purchase

Great! AcuRite Digital Humidity %26 Temp Monitor

I'm so pleased that i bought this AcuRite digital humidity and temperature monitor (01139m.) It sensors the heat perfectly and I was shocked to see such a low humidity level we had. I knew we were getting static shocks but it shows I better get a humidifier! This monitor is made very well and the magnet is so strong that there's absolutely no chance of it falling down or off wherever you put it! The unit is small as not to be conspicuous but the numbers are very large! This is simply a great product at a very affordable price.

Incentivized Review
Helpful?10D9VLMU50UA861949395
reply from AcuRiteSupport

Thank you for taking the time to write your review; we appreciate your feedback! If there is ever anything that we can assist you with, please reach out to our support team via live chat or email request on the AcuRite Support website.Have a splendid day!HayleeAcuRite Support Team

Nov 20, 2025
Jeffrey
Sold and shipped byAcuRite
5 out of 5 stars review

Verified Purchase

Compact Humidity Monitor That Keeps Mold at Bay

I use this in the bathroom to monitor moisture levels and prevent mold and mildew from forming on the shower curtain. The device is compact yet easy to read, with pleasing aesthetics. It responds quickly to changes in humidity. It came with instructions that seemed potentially useful, but I never read them and didn't need to.

Incentivized Review
Helpful?10D9VLMU50UA861949395
reply from AcuRiteSupport

Thank you for taking the time to write your review; we appreciate your feedback! If there is ever anything that we can assist you with, please reach out to our support team via live chat or email request on the AcuRite Support website.Have a sensational day!HayleeAcuRite Support Team

Aug 27, 2025
Mom13
Sold and shipped byAcuRite
5 out of 5 stars review

Verified Purchase

Works Great!

Works great! The size is just right for my nightstand and the backlight is really helpful. It doesn't take up much room but yet the display is large enough that I don't need my glasses, either.

Incentivized Review
Helpful?10D9VLMU50UA861949395
reply from AcuRiteSupport

Thank you for taking the time to write your review; we appreciate your feedback! If there is ever anything that we can assist you with, please reach out to our support team via live chat or email request on the AcuRite Support website.Have a wonderful day!HayleeAcuRite Support Team