{"product_id":"ecowitt-wn31-wh31-multi-channel-temperature-and-humidity-sensor","title":"Ecowitt WN31 (WH31) Multi-Channel Temperature and Humidity Sensor","description":"\u003cp\u003e\u003cspan\u003eAdd temperature and humidity monitoring to another area of your home or property and view the readings through your Ecowitt WS3900 system.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch5\u003e\u003cspan\u003eDescription\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp\u003e\u003cspan\u003eThe Ecowitt WN31 is an additional wireless temperature and humidity sensor for the Ecowitt WS3900, allowing you to monitor conditions in another location without changing the main outdoor temperature and humidity readings from your weather station.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eUse one to keep track of temperature and humidity in places such as a greenhouse, garage, shed, sleepout, storage area or another sheltered outdoor location — or add several sensors if you want to compare conditions around your property.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe Ecowitt WN31 has its own small LCD display for checking the current temperature and humidity where the sensor is located. Its readings are also transmitted wirelessly to the Ecowitt WS3900, where they can be viewed on the console and, when your weather station is connected online, through the Ecowitt app and ecowitt.net.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMonitor Temperature and Humidity in More Locations\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe Ecowitt WS3900 already monitors its main indoor and outdoor conditions, but there are often \u003cstrong\u003eother places where temperature and humidity matter\u003c\/strong\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe Ecowitt WN31 lets you add a separate measurement point wherever you need one. This can be useful for monitoring areas such as:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003egreenhouses\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003egarages and workshops\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003esheds and outbuildings\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003esleepouts\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003estorage areas\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003edifferent rooms within the home\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003esheltered outdoor locations\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eBecause each Ecowitt WN31 operates on its own channel, you can identify and follow each location separately.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eUp to Eight Temperature and Humidity Channels\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe Ecowitt WS3900 supports up to eight compatible additional temperature and humidity channels.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis means you can begin with a single Ecowitt WN31 and add more later if you want to monitor several areas around your home or property.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eEach sensor can be assigned to its own channel, making it easy to distinguish between the different locations you are monitoring.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eSee the Reading on the Sensor, Console or Phone\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe Ecowitt WN31 has its own LCD display, so you can see the current temperature and humidity directly at the sensor.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe readings are also sent to the Ecowitt WS3900 console using a wireless radio signal and can be displayed there alongside your other weather information.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIf your Ecowitt WS3900 is connected to your home Wi-Fi and the internet, the additional temperature and humidity data can also be uploaded to Ecowitt for viewing through the Ecowitt app and ecowitt.net.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis also allows you to look back at graphs and historical records rather than seeing only the current reading.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eSimple Wireless Installation\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe Ecowitt WN31 communicates directly with the Ecowitt WS3900 using a wireless radio signal, so the sensor itself does not need Wi-Fi or an internet connection.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt operates from two AA batteries and transmits an updated temperature and humidity reading approximately every 61 seconds.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe Ecowitt WN31 can be wall mounted or hung in a suitable location.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFor outdoor monitoring, position the sensor in a sheltered location away from direct sunlight and heavy rain so that the reading reflects the surrounding air conditions rather than heating from the sun or direct exposure to weather.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhy Choose the Ecowitt WN31?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eMonitor another location\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e — add temperature and humidity readings from elsewhere around your home or property.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eUp to eight channels\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e — use multiple compatible sensors with the Ecowitt WS3900 if you want to monitor several areas.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eBuilt-in LCD display\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e — see the current reading directly where the sensor is installed.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eReadings on the Ecowitt WS3900 console\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e — additional temperature and humidity channels can be displayed on your weather-station console.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eView data in the Ecowitt app\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e — follow current readings and historical trends when your Ecowitt WS3900 is connected online.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eWireless operation\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e — no cable or Wi-Fi connection is required between the Ecowitt WN31 and the Ecowitt WS3900.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eFAQ’s\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCan the Ecowitt WN31 operate on its own?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe Ecowitt WN31 has a small display showing its current temperature and humidity reading, but to become part of your weather-monitoring system and provide console, app and historical data, it requires the Ecowitt WS3900.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eWill the Ecowitt WN31 replace the outdoor temperature and humidity reading from my Ecowitt WS3900?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eNo. The Ecowitt WN31 is an additional multi-channel sensor. It adds another temperature and humidity location rather than replacing the main outdoor temperature and humidity reading from the Ecowitt WS3900 weather station.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eWill Ecowitt WN31 readings appear on the Ecowitt WS3900 console?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eYes. The Ecowitt WS3900 can receive and display up to eight compatible additional temperature and humidity channels, including Ecowitt WN31 sensors.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCan I use more than one Ecowitt WN31?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eYes. The Ecowitt WS3900 supports up to eight compatible additional temperature and humidity channels, allowing several Ecowitt WN31 sensors to be used in different locations.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eDoes the Ecowitt WN31 need Wi-Fi?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eNo. The Ecowitt WN31 sends its readings directly to the Ecowitt WS3900 using a wireless radio signal.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eYour Ecowitt WS3900 uses your home Wi-Fi and internet connection if you want the additional sensor data uploaded for viewing through the Ecowitt app and ecowitt.net.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003e\u003cspan\u003eSpecificatins\u003c\/span\u003e\u003c\/h5\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eEcowitt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eWN31\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensor type\u003c\/td\u003e\n\u003ctd\u003eMulti-channel wireless temperature and humidity sensor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible weather station\u003c\/td\u003e\n\u003ctd\u003eEcowitt WS3900\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMeasurements\u003c\/td\u003e\n\u003ctd\u003eTemperature and humidity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBuilt-in display\u003c\/td\u003e\n\u003ctd\u003eYes — LCD temperature and humidity display\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWS3900 console display\u003c\/td\u003e\n\u003ctd\u003eYes — compatible additional temperature\/humidity channels can be displayed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum channels\u003c\/td\u003e\n\u003ctd\u003eUp to 8 compatible additional temperature\/humidity channels on the Ecowitt WS3900\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature measurement range\u003c\/td\u003e\n\u003ctd\u003e-40°C to 60°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensor LCD operating range\u003c\/td\u003e\n\u003ctd\u003eApprox. -10°C to 50–60°C; the sensor can continue transmitting below the LCD’s operating range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature resolution\u003c\/td\u003e\n\u003ctd\u003e0.1°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature accuracy\u003c\/td\u003e\n\u003ctd\u003e±1°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHumidity range\u003c\/td\u003e\n\u003ctd\u003e10–99% RH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHumidity resolution\u003c\/td\u003e\n\u003ctd\u003e1% RH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHumidity accuracy\u003c\/td\u003e\n\u003ctd\u003e±5% RH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReporting interval\u003c\/td\u003e\n\u003ctd\u003eApproximately 61 seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWireless frequency\u003c\/td\u003e\n\u003ctd\u003e433 MHz — Oceania \/ New Zealand version\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransmission range\u003c\/td\u003e\n\u003ctd\u003eUp to approximately 100 m in open conditions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWi-Fi on sensor\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData viewing\u003c\/td\u003e\n\u003ctd\u003eSensor LCD, Ecowitt WS3900 console, Ecowitt app and ecowitt.net\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHistorical data\u003c\/td\u003e\n\u003ctd\u003eGraphs and downloadable history through ecowitt.net\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeather resistance\u003c\/td\u003e\n\u003ctd\u003eIP44\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003e2 × AA batteries — not included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApprox. battery life\u003c\/td\u003e\n\u003ctd\u003e1 year\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensor dimensions\u003c\/td\u003e\n\u003ctd\u003eApprox. 123 × 42 × 14 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation\u003c\/td\u003e\n\u003ctd\u003eWall mount or hanging\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch5\u003e\u003c\/h5\u003e\n\u003ch5\u003eDownloads\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0474\/0890\/6404\/files\/Ecowitt_WN31A.pdf?v=1790635630\" target=\"_blank\" title=\"Ecowitt WN31 manual\" rel=\"noopener\"\u003eWN31 Manual\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Ecowitt","offers":[{"title":"Default Title","offer_id":53838355792036,"sku":"WN31","price":49.99,"currency_code":"NZD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0474\/0890\/6404\/files\/WN31_d012178c-a55f-4e6d-9a2f-dd5b62eed82c.jpg?v=1790634949","url":"https:\/\/weatherstation.co.nz\/products\/ecowitt-wn31-wh31-multi-channel-temperature-and-humidity-sensor","provider":"Weatherstations","version":"1.0","type":"link"}