---
product_id: 282886392
title: "ECOWITT Wireless Multi-Channel Thermometer and Hygrometer Sensor, Temperature & Humidity Gauge with LCD Display, Remote App Monitoring WH31(WN31)"
brand: "ecowitt"
price: "314 kr"
currency: DKK
in_stock: true
reviews_count: 13
category: "Ecowitt"
url: https://www.desertcart.dk/products/282886392-ecowitt-wireless-multi-channel-thermometer-and-hygrometer-sensor-temperature-humidity
store_origin: DK
region: Denmark
---

# 8-channel multi-location tracking 100m wireless range Remote app & email alerts ECOWITT Wireless Multi-Channel Thermometer and Hygrometer Sensor, Temperature & Humidity Gauge with LCD Display, Remote App Monitoring WH31(WN31)

**Brand:** ecowitt
**Price:** 314 kr
**Availability:** ✅ In Stock

## Summary

> 🌡️ Stay ahead of the curve with precision climate insights at your fingertips!

## Quick Answers

- **What is this?** ECOWITT Wireless Multi-Channel Thermometer and Hygrometer Sensor, Temperature & Humidity Gauge with LCD Display, Remote App Monitoring WH31(WN31) by ecowitt
- **How much does it cost?** 314 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/282886392-ecowitt-wireless-multi-channel-thermometer-and-hygrometer-sensor-temperature-humidity)

## Best For

- ecowitt enthusiasts

## Why This Product

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

## Key Features

- • **Energy Efficient & Compact:** Lightweight 70g design powered by 2 AA batteries for long-lasting, hassle-free operation.
- • **User-Friendly Customization:** Easy dip-switch setup for channel selection and °C/°F toggling—no tech headaches here.
- • **Smart Remote Access & Alerts:** Instant app updates and email notifications keep you ahead of any climate changes, wherever you are.
- • **Seamless Wireless Connectivity:** Reliable 100m transmission range ensures uninterrupted data flow even through metal structures.
- • **Real-Time Multi-Channel Monitoring:** Track temperature & humidity across 8 customizable zones for total environmental control.

## Overview

The ECOWITT WH31 Wireless Multi-Channel Thermometer and Hygrometer offers precise temperature and humidity monitoring across up to 8 locations with a clear LCD display. Designed for indoor use, it features a robust 100m wireless range, easy dip-switch customization, and integrates seamlessly with Ecowitt Wi-Fi gateways for remote app monitoring and email alerts. Powered by 2 AA batteries, this compact sensor is perfect for professionals seeking reliable, real-time environmental data to optimize comfort and safety.

## Description

Great prices on your favourite Gardening brands, and free delivery on eligible orders.

Review: Perfect pairing with an Ecowitt hub/station - Purchased this to like to my Wittboy weather station, I wasn't expecting much but wow. I have a bike shed that gets alarmingly hot, and I use extractor fans to toggle at certain temperatures, I've used 3 smart thermometers but they all seem to have substantial delays in readings not to mention the bike shed is made of steel so signals are an issue. But with these, they update almost real time and the fans are doing a much better job of reducing temperatures by kicking in earlier, signal is perfect no matter where they seem to be placed on the property and all appear accurate out of the box. Also are probably the cheaper thermometers I've purchased yet perform the best. Battery life also so far seems very good, I ended up buying two more units and have gotten rid of all my other smart thermometers. Works nicely with Home Assistant also. Very happy indeed!
Review: Decent Price and does what it says. - I now have 4 of these additional sensors. Am delighted with them. They take 2 AA batteries and my ECOWITT HP 2511 weather station picks 'em up immediately as soon as the batteries are installed. The console alternates between all installed sensors and the whole system works exactly like it should. Highly recommended to pair with your ECOWITT weather Station. As a test I took one sensor and put it inside a small fridge, not expecting it to work as that fridge was at least 100ft+ feet away. and has metal walls! To my astonishment and delight, it send the data back to my HP2511 without any problems. Absolutely amazing !. If interested ? See my review of the HP2511.

## Features

- 【Wireless Multi-channel Thermometer Hygrometer】Ecowitt WH31(WN31) Thermometer & Hygrometer measures temperature & humidity and can view the current temperature and humidity on the LCD display. The data can be streamed by Ecowitt GW1100 Wi-Fi Gateway, HP2551, WH2680 and WN1900( These devices are all sold separately ) and can be viewed on our WS View Plus/ Ecowitt APP after the Wi-Fi configuration done.
- 【Supports up to 8 channels】Ecowitt WH31(WN31) thermo-hygrometer gauge allows you to track temperature and humidity at up to 8 locations (additional sensors are sold separately). They can be placed at your living room/bedrooms/bathroom/basement/garage/guitar room/baby room and etc; each channel number can be customized on your practical requirements by dialing the dip switches.
- 【Remote APP Monitoring & Email Alerts】If you want to view the multi-channel sensors' data on your mobile application, you need to pair this WH31(WN31) thermo-hygrometer sensor with Ecowitt GW1100 Wi-Fi Gateway, HP2551, WH2680, WN1900 console(These Devices are sold separately) after Wi-Fi configuration. Supports uploading the data to free Ecowitt Weather Server(ecowitt.net) to view all the data graph / download history records / set e-mail alerts for all the sensors on the website.
- 【Easy to Use】2 pcs AA batteries(NOT included) powered. Dialing the 1st to 3rd dip switches to customize the channel number; while dialing the 4th dip switch to freely switch between ℃ and ℉. If you want to pair this device with GW1100 wi-fi gateway(sold separately), please refer to the GW1100 quick start to get the wi-fi configuration procedures.
- The wireless transmission range is up to 100m/328ft in the open field. If you want to install the sensor outside, it's recommended to install it inside a solar radiation shield to obtain best accuracy and protection.The sensor data will be transmitted every 60 seconds.
- 【About the RF Frequency of Ecowitt's products】: This WH31(WN31) Thermometer & Hygrometer is 868 MHz and the products which are pairing with this device also need to be 915 MHz ( The frequency of products sold in US/CA is 915 MHz ; The European 868 MHz；The Australia 433 MHz. )
- 【What Are The Differences Between WN31 And WN32】: ①WN31 is 8-channel temp-hygrometer sensor, while WN32 is single channel sensor; ②WN31 is recommended to use indoors, like in storage rooms, freezers, etc, while the WN32 is used outdoor; ③WN31 could not provide "feels like" and "Dew Point" data, while WN32 could provide; ④WN31's data could be displayed on "Temp and Humidity CHX" module(X means number 1,2,3...8) of Ecowitt APP, while WN32's data could be displayed on "Outdoor" module of Ecowitt APP.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07JLRJRLM |
| Batteries | 2 AA batteries required. |
| Batteries Required? | Yes |
| Batteries included? | No |
| Best Sellers Rank | 19,028 in Garden ( See Top 100 in Garden ) 45 in Plant & Soil Monitoring 127 in Hygrometers |
| Colour | White |
| Customer Reviews | 4.6 4.6 out of 5 stars (750) |
| Date First Available | 22 Oct. 2018 |
| Display style | LCD |
| Included components | remote |
| Item Package Quantity | 1 |
| Item Weight | 70 g |
| Item model number | WN31 |
| Manufacturer | ECOWITT |
| Material | Plastic, Battery |
| Part number | FG-WH37BN-ECO1 |
| Plug profile | Freestanding |
| Power source type | Battery Powered |
| Product Dimensions | 5 x 5 x 13 cm; 70 g |
| Special Features | High precision |
| Specific uses | Humidity, Temperature |
| Style | WH31 |
| tech_spec_battery_description_toys | Alkaline |

## Product Details

- **Brand:** ECOWITT
- **Colour:** White
- **Connectivity technology:** Wi-Fi, 915 MHz
- **Material:** Plastic, Battery
- **Number of batteries:** 2 AA batteries required.
- **Power source:** Battery Powered
- **Recommended uses for product:** Monitoring
- **Special feature:** High precision
- **Specific uses for product:** Humidity, Temperature
- **Style:** WH31

## Images

![ECOWITT Wireless Multi-Channel Thermometer and Hygrometer Sensor, Temperature & Humidity Gauge with LCD Display, Remote App Monitoring WH31(WN31) - Image 1](https://m.media-amazon.com/images/I/51qYnyyOMrL.jpg)

## Questions & Answers

**Q: Can you confirm that these sensors are 868mhz for the uk**
A: Yes. It's also on the box fairly clearly so you can check before opening.

**Q: Can this be paired with the ws2320 weather station?**
A: It does not show up in the specs, so short answer is no.
It might via the GW100 Gateway and through that it certainly will show up on your webpage as the device [& CH No.]
However, a HP2551Console has a built a in gateway will add support for 8 more sensors. < I would contact Ecowitt directly via customer support before pursuing this option.

**Q: Hello, i do not understand the two options available. i need remote as well as the moisture probe. which option do i need to purchase?**
A: Are you buying NEW?
The Console HP2551 Or Better is essential for all the gadgets to work.

With that choice [or better] you can add 8 more sensors, Temps, 1xLightning, Airs, Soil, Water etc. up to 8.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect pairing with an Ecowitt hub/station
*by M***. on 23 June 2025*

Purchased this to like to my Wittboy weather station, I wasn't expecting much but wow. I have a bike shed that gets alarmingly hot, and I use extractor fans to toggle at certain temperatures, I've used 3 smart thermometers but they all seem to have substantial delays in readings not to mention the bike shed is made of steel so signals are an issue. But with these, they update almost real time and the fans are doing a much better job of reducing temperatures by kicking in earlier, signal is perfect no matter where they seem to be placed on the property and all appear accurate out of the box. Also are probably the cheaper thermometers I've purchased yet perform the best. Battery life also so far seems very good, I ended up buying two more units and have gotten rid of all my other smart thermometers. Works nicely with Home Assistant also. Very happy indeed!

### ⭐⭐⭐⭐⭐ Decent Price and does what it says.
*by A***N on 6 April 2023*

I now have 4 of these additional sensors. Am delighted with them. They take 2 AA batteries and my ECOWITT HP 2511 weather station picks 'em up immediately as soon as the batteries are installed. The console alternates between all installed sensors and the whole system works exactly like it should. Highly recommended to pair with your ECOWITT weather Station. As a test I took one sensor and put it inside a small fridge, not expecting it to work as that fridge was at least 100ft+ feet away. and has metal walls! To my astonishment and delight, it send the data back to my HP2511 without any problems. Absolutely amazing !. If interested ? See my review of the HP2511.

### ⭐⭐⭐⭐⭐ Accurate, WN31 sensor
*by G***V on 27 May 2024*

Yet another accurate sensor (WN31) from Ecowitt. As far I checked spot on. -Temperature measured within 0.1C and humidity within 2%. All well within the specification. Bought this as an additional sensor for my garden, mounted in a separate solar radiation shield. For best accuracy, always mount these in effective solar radiation shields or shelters. Certainly a good product, recommended.

## Frequently Bought Together

- ECOWITT WN31 Wireless Multi-Channels Thermometer and Hygrometer Sensor, Temperature & Humidity Gauge with LCD Display, Dip Switches to Switch ℃/℉(Not use as Outdoor temperautre and Humidity Sensor)
- ECOWITT WH51 Soil Moisture Sensor Soil Humidity Tester - Accessory Only, Can Not Be Used Alone
- ECOWITT WH51L Soil Moisture Sensor with 1m/3.28ft PVC Wire Probe, LCD Display, Needs to Pair with Wi-Fi Gateway, 915 MHz

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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-04-25*