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)

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 have tried sooooo many moisture meters from really cheap crap with double metal rods that show light intensity, moisture, and soil pH which is always inaccurate, single metal rod by XLUX company and those are reliable and very accurate but you have to poke the soil in multiple places which damages roots, also used the Blumat $90 meter which is way overpriced and it only shows the moisture without any graph 📈 or remote Bluetooth or Wi-Fi capabilities, and bunch of other ones that were always showing wrong readings until someone told me to try these Ecowitt WH51 and WH51L sensors. The WH51 model is great and shows moisture levels from the top 7 inches of soil which is great for all types of pots up to 7 to 10 gallons. The beauty about this Wi-Fi Gateway is that you have access to the data from anywhere in the world and it comes with graphs that show previous readings that you can compare and dial in your watering habits for better performance. You can add up to 8 devices per each GW1100 Wi-Fi Gateway and it comes with an app as well as their website and you can set up alerts to come in through the app as well as get an email when soil goes below your indicated level which is very very useful. Now when it comes to raised beds and 20 gallon containers I have to purchase the WH51L model which comes with a probe attached to 1 meter long cable which allows you to use them in deep pots/beds/containers and they can also be connected to the same Wi-Fi Gateway. Both models are very accurate. The Wi-Fi gateway also has a temperature and humidity and pressure sensor which gives you readings of the room where the sensor is located. I plugged mine in inside my grow room next to my grow tents to monitor the temperature and humidity inside that room to make sure my grow tents are in an optimal environment. I can't say enough good things about Ecowitt. Customer service is very helpful and very responsive. The only thing I did not like is that they are based in China and you can't really call them and the only method of communication is via email but like I said they are very helpful and responsive. If you haven't tried this company yet then don't waste your money on anything else and do yourself a favor get this Wi-Fi gateway along with the moisture meters and anything else you might need because you won't be disappointed. I will surprised that they are so inexpensive and work so great. I mean when comparing to the Blumat meter that cost $90 it's like comparing apples to oranges because for $90 it should be able to do more, at least have remote capability but it doesn't even have that option. In my opinion it's extremely overpriced and these Ecowitt devices without a doubt are blowing away Blumat meters. I hope this helps.

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!

I was able to connect the GW1100 gateway after some difficulty using an iPhone 11 and a Nighthawk R7000P router setup with 2.4G and 5G Wi-Fi channels/connections. I initially followed the “recommended” (Method B) from the quick start GW1100 guide: downloaded the ecowitt app to iPhone and established an account using email and a password. Followed the startup instructions from the app and I could see the gateway under the iPhone Settings/Wi-Fi panel but couldn’t get the gateway to connect to our wirelesss network. I plugged the gateway into a USB powered multi-hub using the ecowitt supplied USB cable to the hub and a second USB lightening cable from the hub to the iPhone and was able to click and connect with the gateway in the iPhone Settings/Wi-Fi panel. Went back to the ecowitt app and it was able to advance to next steps- entered name of my local 2.4G network and password. The app screen began downloading data from a WH51 soil moisture sensor that I had installed a battery into. It also downloaded some of the data from our Ambient WS-2000 Weather station: Outdoor Temp & Humidity, Solar and UV, Wind, Barometric Pressure, and Temp and Humidity from a primary and secondary Ambient probe. The ecowitt app did not download rain data from the Ambient RS-2000. I then sequentially installed batteries into three additional ecowitt WH51 watering probes (positive pole towards bottom, red light comes on and then flashes) and they automatically connected with the gateway with no additional setup. Each one measured 0% humidity in air, and between 98-100% humidity when placed in a glass of water. We used a second iPhone and downloaded the ecowitt app and after logging in with the previously established account name and password, it connected with the gateway and provided realtime data. I couldn’t get Ambient WS-2000 display to connect and show the humidity data from the ecowitt WH51 probes.The reason I purchased the ecowitt GW1100 gateway and WH51 humidity probes is because the Ambient watering probes have such terrible reviews- complaints of slowness and inaccuracy. I did a quick check of the four WH51 probes using two different clay pots containing a fast draining cactus soil mix and freshly watered. The probes were inserted completely into the soil (to the green housing) and allowed to come to equilibrium for 40 minutes in pot 1 before measurements were recorded. The 4 probes were then transferred to pot 2 for 5 minutes before taking additional readings. The readings in pot 2 at 5 minutes were stable for an additional 45 minutes. The probes seem to be doing what I wanted and look fairly consistent- the small differences between probes are probably due to inconsistences in the soil humidity or composition in different areas of the pots. The app data is very easy to read (compared to the setup instructions). So I give this product 4 stars minus 1 star for difficulty in connecting the gateway to our internet. And the ecowitt instructions really suck so hopefully those listed here will help a few folks. And maybe Ecowitt will send me 4 additional WH51 probes for assisting them?Humidity in pot 1 after 40 minutes:CH1. 40%CH2. 36%CH3. 40%CH4. 32%Humidity in pot 2 after 5 and 45 minutes:CH1. 26CH2. 29CH3. 26CH4. 30

Great product. Setup isn't too bad. Paired with ecowitt soil moisture sensor makes keeping track of plants dry back.The data graph is amazing. It has really help me dial in a good watering schedule.