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)

This has been the best weather station I've had. It's simple and the network conneciton can be a little fiddly but overall it does the job. Recommended

I purchased two of these units, one to keep upstairs and one for the basement. My upstairs is over our garage so it's always warmer in the summer, colder in the winter. Now we can have an idea of how much different the climate will be, same for the basement. Connectivity was a breeze, just have to change the dip switch if using multiples for the different channels.

I couldn’t be happier with this ecowitt sensor. Setup was quick and hassle-free --> it paired easily with my ecowitt gateway (the gateway is what is tied to my home automation). I actually keep this sensor in my freezer to prevent food spoilage incase there is a problem with the power or freezer. The readings are accurate and update frequently, and the build quality feels solid. I especially appreciate how compact and low-profile the sensor is --> it's easy to mount or tuck away without being obtrusive. The battery life so far has been excellent as well. If you're looking for a reliable and flexible way to expand your home climate monitoring, this sensor is absolutely worth it. Highly recommend!

Easy connectivity and setup. Great value would buy again

Sensor works just fine. It is not as accurate as Ambient Weather sensor when it comes to humidity (not linear in higher, above 50% readings), but temperature was very close (within 0.5 degree C). it paired with Ambient Weather without any problem. It has been working for fine for the last 2 days - outside at -12 C, garage at +5 C, and inside at +22 C with humidity range between 30% and 85%. I bet it is simply the same manufacturer selling non-branded sensors for lower price than Ambient Weather. One start drops for non-linear response for humidity as it cannot be corrected. Low end was about 3% off (within specs), higher, like 50% was off by 10%, while at 75% it was off by 15%.

The Ecowitt sensors are excellent. They are accurate, reliable, and easy to configure. I now have six of the temperature humidity sensors, and would buy more if I had a place to put them.

So I got a gateway and a few multi channel sensors .. created an account online and hooked it all up. All looks good now after a few months, I set email alert every hour. So when humidifier runs low I get an email and know it needs to be filled, when garage gets too cold, I get an alert so I can remove any freezable.. great email alerts system. If there’s anything I’d like to see, it’s an app that works everywhere. The app that it’s used with only works when connected to the WiFi that the gateway is connected to. However the website works anywhere. I don’t like to have a browser on my phone so a separate app that worked like the website would be great. Other than that it’s an amazing system and lets I believe up to 8 channels. You can put one in the freezer and set an alert if the freezer goes above a set temperature, you get an email. Works great. for the price it’s amazing.

Fantastic device. Captures the temps of every room in my house and reports them up to Home Assistant.

Funciona perfecto, muy preciso y de calidad. Fácil de configurar con la app de ecowitt

I am a weather buff, and tech snob! So this is where my 2 passions meet. I was in the market for a modular weather station / system, and came across the Ecowitt suite of products. Affordable, and good reviews is ultimately what made me pursue the product even further. I was attracted by their modular approach, whereby I can locate each sensor in optimal siting for their respective measurement. In total (thus far...) I have purchased the gateway, the outdoor temp / humidity sensor, 3 indoor temp / humidity sensors, and the rain gauge. Anemometer and soil moisture meter will be added at a later date. The sensor pairing process is automatic. The range is fantastic. The accuracy seems bang on. The presentation of data that is published and viewable on the ecowitt website is well thought out and pleasing to the eye. Top kudos to Ecowitt team. The data viewable in the WS View app is not as good as the website view, but just remember that the WS View app is just used to help in the setup process, and only the full enjoyment and benefit comes when you publish your weather data (either public or private) to the Ecowitt site.

Połączył się z moją stacją sbs-ws-500 zaraz po włożeniu baterii. Jedyne co trzeba zrobić to wybrać kanał. Działa przez trzy ściany i gruby izolowany sufit. Sprawdzony także w tunelu foliowym poza domem. Także tam jest w zasięgu stacji.

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!

I bought 3 WH31 sensors to go with my existing HP2551 weather station, and they work very well. We have a damp problem in the house and have bought two dehumidifiers to improve the situation, but I wanted a way to measure the humidity in each room to figure out what was really going on. Firstly I researched the sensors available as part of 'smart home' systems. I've never bothered with Google Nest or Alexa or smart lighting but I thought my humidity problem might be a good reason to make a start. Not the case. Smart home systems use wifi or zigbee or sometimes bluetooth. These are great for transmitting a lot of data but they are power hungry and don't travel well through obstructions. Reviews of smart home temp/humidity sensors commonly complained of short battery life and their inability to connect through internal walls. These sensors only transmit tiny amounts of data and only every minute or so. Wifi or bluetooth is just the wrong band. In January 2019 I had bought an Ecowitt HP2551 weather station and I have been happy with it. It came with a single WH32 internal sensor, as well as the external unit and a screen/gateway. I had been moving the WH32 around the house to understand our humidity problem. It had no problem transmitting though 3 internal brick walls and ran on 2 rechargeable AA cells for well over a year. After discounting smart home options I had a close look at the Ecowitt website to see if I could get some more internal sensors. I discovered that it is not possible to connect more WH32 sensors but that the WH31 model is 'multi-channel' and gateways like the GW1000 can connect to 8 of them - and so can my HP2551 weather station gateway. Just to be clear - the gateway uses wifi to connect to my home network and to the internet, but the sensors use the 433Mhz band to connect to the gateway. 433Mhz is also used by other low power / low bandwidth devices such as garage door openers. I can monitor the real-time temp/humidity on the weather station gateway screen but I have set up an account at ecowitt.net which produces daily graphs showing my external weather data as well as the data from my 4 internal sensors. This has proven to be a very cost-effective way to monitor humidity in different rooms of the house. A few final points: - I needed to update the firmware on my HP2551 gateway to get all the features I wanted (instructions on the Ecowitt website) - you need to install a phone app to configure the multi-channel sensors and have them working on ecowitt.net - the equivalent sensors for smart home systems were far more expensive (maybe smart home systems are sexier than weather systems).