--- product_id: 395298210 title: "WH31 Multi-Channel Temperature and Humidity Sensor (1 Sensor) - Accessory Only, Can Not Be Used Alone" brand: "ecowitt" price: "£41.23" currency: GBP in_stock: true reviews_count: 5 category: "Ecowitt" url: https://www.desertcart.co.uk/products/395298210-wh31-multi-channel-temperature-and-humidity-sensor-1-sensor-accessory store_origin: GB region: United Kingdom --- # 915 MHz wireless frequency Multi-channel app monitoring ±1°C temperature accuracy WH31 Multi-Channel Temperature and Humidity Sensor (1 Sensor) - Accessory Only, Can Not Be Used Alone **Brand:** ecowitt **Price:** £41.23 **Availability:** ✅ In Stock ## Summary > 🌍 Stay connected to your environment—anytime, anywhere! ## Quick Answers - **What is this?** WH31 Multi-Channel Temperature and Humidity Sensor (1 Sensor) - Accessory Only, Can Not Be Used Alone by ecowitt - **How much does it cost?** £41.23 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/395298210-wh31-multi-channel-temperature-and-humidity-sensor-1-sensor-accessory) ## 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 - • **Real-Time Mobile Alerts:** Stay ahead with instant app notifications and email alerts via Ecowitt’s WS View Plus app and weather server integration. - • **Crystal Clear LCD Display:** On-device temperature and humidity readings at a glance, supporting both Celsius and Fahrenheit units. - • **Battery-Powered Portability:** Compact, energy-efficient design powered by 2 AA batteries with low battery alerts to keep you informed. - • **Effortless Wireless Connectivity:** Utilizes robust 915 MHz frequency with a 328ft open-field range for reliable indoor/outdoor data transmission. - • **Seamless Multi-Channel Monitoring:** Track up to 8 locations simultaneously with customizable channel IDs for precise environmental insights. ## Overview The ECOWITT WH31 is a precision wireless temperature and humidity sensor designed for multi-location monitoring. Operating at 915 MHz with up to 328ft transmission range, it supports up to 8 sensors (sold separately) and streams data via compatible Ecowitt Wi-Fi gateways to the WS View Plus app. Featuring ±1°C temperature accuracy, real-time alerts, and a clear LCD display, it empowers professionals to maintain optimal indoor and outdoor environments effortlessly. ## Description NOTE This ECOWITT WH31 multi channel temperature and humidity sensor only works with Ecowitt products and will not work with any other branded products. The ECOWITT WH31 Wireless Thermometer and Hygrometer measures temperature and humidity and supports up to 8 channels (one unit for one channel, optional sensors sold separately). The data can be continuously streamed via the GW1000 WiFi gateway (sold separately) and can be accessed on our mobile WS View app after the WiFi configuration is complete. Special features: Measures temperature and humidity. With display and works with the GW1000 WiFi gateway (sold separately) to complete the WiFi configuration on our WS app. After WiFi configuration, the live multi-channel temperature and humidity data can be retrieved directly in the WS app. Supports up to 8 sensors (additional sensors sold separately). Transmission range in open field: 100 m. Fahrenheit and Celsius selectable. If you decide to download the data to our own weather server, you can view the graph history and download the history of the records from the website. Works with HP3501 WiFi Weather Station Special features: Frequency: 915 MHz. Temperature range: -10 °C - 60 °C, resolution 0.1 °C, accuracy: ± 1 °C. Humidity range 10% ~ 99% Resolution 1% Accuracy: ± 5% Sensor interval: 61 seconds. Requires 2 AA batteries (not included). Sensor size: 123 x 42 x 14 mm. Note: A low battery icon is displayed in the app to show the battery status of the sensor. Package includes: A multi-channel temperature and humidity sensor 1 x user manual (may not Not in English) Review: Excellent product, works as advertised. Review: Compliqué - Bien sauf pour mettre sur l’application, il faut la passerelle ## Features - Wireless Multi-channel Thermometer Hygrometer Ecowitt WH31 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 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 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 - Outdoor & Indoor Use The wireless transmission range is up to 100m/328ft in the open field, allowing you to use it in outdoor and indoor; If you want to install the sensor outside, its recommended to install it inside a solar radiation shield to obtain best accuracy and protection;The sensor data will be transmitted every 60 seconds ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07JLRJRLM | | Are batteries included? | No | | Brand | ECOWITT | | Brand Name | ECOWITT | | Colour | One Multi Thermo-Hygro Sensor | | Connectivity Technology | Wi-Fi, 915 MHz | | Country of Origin | USA | | Customer Reviews | 4.7 out of 5 stars 779 Reviews | | Display Type | LCD | | Frequency | 915 MHz | | Included Components | remote | | Item Dimensions D x W x H | 1.4D x 12.3W x 1.4H Centimeters | | Manufacturer | ECOWITT | | Material | Plastic, Battery | | Material Type | Plastic, Battery | | Model Number | WN31 | | Number of Batteries | 2 AA batteries required. | | Part Number | FG-WH37BN-ECO1 | | Power Source | Battery Powered | | Power Source Type | Battery Powered | | Recommended Uses For Product | Monitoring | | Sensor Technology | Motion | | Special Feature | Non Contact | | Special Features | Non Contact | | Specific Uses For Product | Humidity, Temperature | | Style Name | WN31 | | Temperature Accuracy | ± 1°C | | Temperature Reading Accuracy | plus_minus_1_degree_celsius | | UPC | 711639641228 | | Unit Count | 1.0 Count | | Upper Temperature Rating | 60 Degrees Celsius | ## Product Details - **Brand:** ECOWITT - **Power Source:** Battery Powered - **Recommended Uses For Product:** Monitoring - **Special Feature:** Non Contact - **Specific Uses For Product:** Humidity, Temperature ## Images ![WH31 Multi-Channel Temperature and Humidity Sensor (1 Sensor) - Accessory Only, Can Not Be Used Alone - Image 1](https://m.media-amazon.com/images/I/51qYnyyOMrL.jpg) ![WH31 Multi-Channel Temperature and Humidity Sensor (1 Sensor) - Accessory Only, Can Not Be Used Alone - Image 2](https://m.media-amazon.com/images/I/61-yM7PrDHL.jpg) ![WH31 Multi-Channel Temperature and Humidity Sensor (1 Sensor) - Accessory Only, Can Not Be Used Alone - Image 3](https://m.media-amazon.com/images/I/61AiHEvKSmL.jpg) ![WH31 Multi-Channel Temperature and Humidity Sensor (1 Sensor) - Accessory Only, Can Not Be Used Alone - Image 4](https://m.media-amazon.com/images/I/61GNo8KM9HL.jpg) ![WH31 Multi-Channel Temperature and Humidity Sensor (1 Sensor) - Accessory Only, Can Not Be Used Alone - Image 5](https://m.media-amazon.com/images/I/61hj0RIUlYL.jpg) ## Questions & Answers **Q: Can i use wh32 for wh31? and 8 sensor max. for one gateway?** A: Hi, you can't use the WH32 for WH31. Here are the differences between the two sensors: 1. Only the WH32 sensor data can display "Outdoor Temperature and Humidity" on the WS View app when work with GW1000. 2. The WH31 sensor data will display "Multi-channel Temperature and Humidity" on the WS View app when work with GW1000. 3. One GW1000 can only receive one WH32 sensor data. 4. One GW1000 can receive up to 8 WH31 sensor data. 5. The WH32 sensor data can be uploaded to weather underground, while the WH31 could not. 6. Both the WH32 and WH31 data can be uploaded to ecowitt.net. 7.The WH31 can work with HP2551/HP3500/HP3501 Any other question, please let us know at support@ecowitt.com. **Q: Is this sensor ok for outdoor use?** A: Eccowitt has a sensor for outdoor use that you should buy. (WH32) The WH31 will take channel 1 to 8, while the WH32 is independent and has it own channel assignment so leaving channel 1 to 8 open for other temp/humidity sensors. Physically WH31 and WH32 are the same case. **Q: Has anyone had success with a WH31 in a freezer or refrigerator?** A: Hi, you can place the WH31 in a freezer or refrigerator, since the working temperature for it is -40C to 60C(-40F to 140F). Any other question, please contact us at support@ecowitt.com **Q: Can this sensor be calibrated? Thanks!** A: Hi, yes, you can calibrate it on the WS View app: On Live Data press More - select Calibration - select Multi CH T&H Calibration Then you can set the value you want. Any question, please contact us at support@ecowitt.com. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Excellent product, works as advertised. *by D***E on 6 June 2025* ### ⭐⭐⭐ Compliqué *by B***L on 7 February 2026* Bien sauf pour mettre sur l’application, il faut la passerelle ### ⭐⭐⭐⭐⭐ Buena calidad!! *by M***. on 6 December 2025* Funciona perfecto, muy preciso y de calidad. Fácil de configurar con la app de ecowitt ## 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 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/395298210-wh31-multi-channel-temperature-and-humidity-sensor-1-sensor-accessory](https://www.desertcart.co.uk/products/395298210-wh31-multi-channel-temperature-and-humidity-sensor-1-sensor-accessory) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-19*