---
product_id: 252356789
title: "(01139M) Pro Humidity Meter and Thermometer with Backlight Button"
brand: "acurite"
price: "HK$252"
currency: HKD
in_stock: true
reviews_count: 13
category: "Acu Rite"
url: https://www.desertcart.hk/products/252356789-01139m-pro-humidity-meter-and-thermometer-with-backlight-button
store_origin: HK
region: Hong Kong
---

# Touch-activated backlight Magnet & tabletop mount Updates every 10 seconds (01139M) Pro Humidity Meter and Thermometer with Backlight Button

**Brand:** acurite
**Price:** HK$252
**Availability:** ✅ In Stock

## Summary

> 🌡️ Master your microclimate with precision and style!

## Quick Answers

- **What is this?** (01139M) Pro Humidity Meter and Thermometer with Backlight Button by acurite
- **How much does it cost?** HK$252 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/252356789-01139m-pro-humidity-meter-and-thermometer-with-backlight-button)

## Best For

- acurite enthusiasts

## Why This Product

- Trusted acurite brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **See Clearly Anytime:** Touch-activated backlight ensures effortless monitoring day or night—never miss a reading in the dark.
- • **Versatile Placement:** Magnet or tabletop mount adapts seamlessly to your space, from office desks to plant shelves or RV walls.
- • **Compact Yet Powerful:** Sleek 3-inch design packs professional-grade accuracy (+/-0.5°F, +/-2% RH) into a minimalist footprint.
- • **Precision in Real-Time:** Get ultra-responsive humidity & temperature updates every 10 seconds to stay ahead of your environment.
- • **Track Trends Like a Pro:** 24-hour and all-time high/low records help you understand and optimize your indoor climate over time.

## Overview

The AcuRite Pro Humidity Meter and Thermometer delivers professional-grade accuracy with updates every 10 seconds, a touch-activated backlight for easy nighttime viewing, and flexible mounting options including magnet and tabletop. Compact and reliable, it tracks real-time temperature and humidity with +/-0.5°F and +/-2% RH precision, plus records 24-hour and all-time highs and lows—perfect for managing indoor comfort, protecting valuables, and optimizing your environment.

## Description

Master your humidity levels with the AcuRite Pro Indoor Hygrometer and Thermometer. Equipped with a magnet on the back for easy placement, this small humidity gauge is ready for plants, cigars, guitars, or whatever you need to protect. This digital temperature and humidity comfort monitor combo is everything you need, with enhanced temperature and relative humidity accuracy within +/- 0.5° F and +/- 2% RH, respectively.

Review: Great reliable little meter! - A great dependable meter. Updates quickly like every 10 seconds. Batteries last a long time, as I recall I only changed once after about 3 years of continuous use. I find the backlight very handy (tap the top to light). Temperature was accurate vs other gauges in the home. Didn't have another hygrometer to compare against. But taking the math approach you can take the local weather readings and calculate what the indoor relative humidity should probably be, and it was right on accurate. Great value for the money! Recently bought another one for a friend.
Review: Compact and Accurate - AcuRite Pro Humidity Meter & Thermometer - I recently purchased the AcuRite Pro Humidity Meter & Thermometer with Touch Activated Backlight, and it has been a very satisfying addition to our RV. The device is user-friendly, with a straightforward interface that makes it easy to read and understand the current temperature and humidity levels. One of the standout features for me is the different mounting options. This flexibility is particularly useful in an RV setting, where space is at a premium and you need devices that can adapt to different spaces. The AcuRite Pro fits this need perfectly. In terms of accuracy, this device is spot on. I've compared its readings with other measuring devices I own, and it consistently delivers accurate results. There are no discrepancies or issues in its performance, which gives me confidence in the data it provides. Another aspect I appreciate is the quick visual readout. The display is clear and easy to read at a glance, which is convenient when you're busy and just need a quick check. Additionally, the size of the unit is just right – it's compact enough not to be obtrusive in our RV, yet large enough to easily read the display. Overall, the AcuRite Pro Humidity Meter & Thermometer is a reliable and handy tool for anyone needing to keep track of environmental conditions, especially in smaller living spaces like an RV. Its ease of use, accuracy, and compact size make it an excellent choice.

## Features

- Enhanced Accuracy – Detects changes in temperature and humidity every 10 seconds
- Backlight Function – Easily view temperature & humidity levels at any time, day or night
- Multiple Mounting Options – Tabletop or magnet-mountable design
- Responsive Readings – Indicates current air conditions to ensure proper humidity control
- Record High and Lows – Displays 24-hour and all-time record high and low readings

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08LKC4K15 |
| Best Sellers Rank | #22,963 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #44 in Weather Thermometers |
| Brand | AcuRite |
| Brand Name | AcuRite |
| Color | Hygrometer with Backlight |
| Customer Reviews | 4.6 out of 5 stars 861 Reviews |
| Global Trade Identification Number | 00072397011396 |
| Included Components | Humidity Gauge, Instruction Manual |
| Item Highlight | Keep tabs on your indoor conditions, even in the dark, with this hygrometer/thermometer combo, complete with comfort meter. |
| Item Length | 3 inches |
| Item Type Name | AcuRite Pro Humidity Meter & Thermometer with Touch Activated Backlight |
| Item Weight | 0.09 kg |
| Manufacturer | AcuRite |
| Model | 01139M |
| Mounting Type | Tabletop |
| Number of Items | 1 |
| Part Number | 01139M |
| UPC | 072397011396 |
| Unit Count | 1 Count |
| Upper Temperature Range | 158 °F |
| Upper Temperature Rating | 158 °F |
| Warranty Description | Limited One-Year Warranty |

## Product Details

- **Brand:** AcuRite
- **Color:** Hygrometer with Backlight
- **Item Weight:** 0.09 kg
- **Mounting Type:** Tabletop
- **Upper Temperature Rating:** 158 °F

## Images

![(01139M) Pro Humidity Meter and Thermometer with Backlight Button - Image 1](https://m.media-amazon.com/images/I/71Jn9RFFFnL.jpg)
![(01139M) Pro Humidity Meter and Thermometer with Backlight Button - Image 2](https://m.media-amazon.com/images/I/71lQq+IGyEL.jpg)
![(01139M) Pro Humidity Meter and Thermometer with Backlight Button - Image 3](https://m.media-amazon.com/images/I/81aMfbCFIxL.jpg)
![(01139M) Pro Humidity Meter and Thermometer with Backlight Button - Image 4](https://m.media-amazon.com/images/I/81Uiz0s+e8L.jpg)
![(01139M) Pro Humidity Meter and Thermometer with Backlight Button - Image 5](https://m.media-amazon.com/images/I/91i-0zy3knL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great reliable little meter!
*by C***R on January 10, 2026*

A great dependable meter. Updates quickly like every 10 seconds. Batteries last a long time, as I recall I only changed once after about 3 years of continuous use. I find the backlight very handy (tap the top to light). Temperature was accurate vs other gauges in the home. Didn't have another hygrometer to compare against. But taking the math approach you can take the local weather readings and calculate what the indoor relative humidity should probably be, and it was right on accurate. Great value for the money! Recently bought another one for a friend.

### ⭐⭐⭐⭐⭐ Compact and Accurate - AcuRite Pro Humidity Meter & Thermometer
*by T***G on December 16, 2023*

I recently purchased the AcuRite Pro Humidity Meter & Thermometer with Touch Activated Backlight, and it has been a very satisfying addition to our RV. The device is user-friendly, with a straightforward interface that makes it easy to read and understand the current temperature and humidity levels. One of the standout features for me is the different mounting options. This flexibility is particularly useful in an RV setting, where space is at a premium and you need devices that can adapt to different spaces. The AcuRite Pro fits this need perfectly. In terms of accuracy, this device is spot on. I've compared its readings with other measuring devices I own, and it consistently delivers accurate results. There are no discrepancies or issues in its performance, which gives me confidence in the data it provides. Another aspect I appreciate is the quick visual readout. The display is clear and easy to read at a glance, which is convenient when you're busy and just need a quick check. Additionally, the size of the unit is just right – it's compact enough not to be obtrusive in our RV, yet large enough to easily read the display. Overall, the AcuRite Pro Humidity Meter & Thermometer is a reliable and handy tool for anyone needing to keep track of environmental conditions, especially in smaller living spaces like an RV. Its ease of use, accuracy, and compact size make it an excellent choice.

### ⭐⭐⭐⭐ It works
*by M***W on April 5, 2023*

The calibration part is annoying, but the salt method works to get the humidty set correctly. I used the thermostat temp to calibrate the temperature. After that, it does what it's supposed to do. I had to calibrate the humidity 2% and the temperature 1 degree, so out of the box is relatively close to accurate. The magnets are pretty strong. I had it hanging on drywall over a corner (corner bead/screw) without falling off. For the price, it was worth a day of calibration. I gave it 4 stars because it's similarly priced to units that come with batteries and this does not. ALSO - the complete lack of consistency regarding battery size in their own description and from customers in the question section. Mine required 2 AAA batteries. In their own description it's listed as AA & AAA. In the question section, it's listed as both. I'm not sure where the mistakes come from or if they have different models using the same model number or what? Just annoying to not know which batteries to order before receiving this.

## Frequently Bought Together

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-09-11*