Wireless Multi-Channel Thermometer and Hygrometer Sensor, Temperature & Humidity Gauge with LCD Display, Remote App Monitoring WH31(WN31)

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 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.

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.

Great!

We got a couple of these to go in our basement and garage and link to our Ecowitt Wittboy weather station The instructions for linking them aren't great, so they took a while to set up, and the display functionality on the Wittboy is limited, but they work well However, they are quite expensive, so would probably go for Zigbee H&T sensors in the future and link to Home Assistant directly

Connected without any problems.

The expected good quality and feel of the product. It appeared instantly once my number was changed to 3.

Easy to add into an existing Ecowitt setup. Up and running in a very short time.

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.

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

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.

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).