GoveeWiFi Hygrometer Thermometer Sensor 3 Pack, Indoor Wireless Smart Temperature Humidity Monitor with Remote App Notification Alert, 2 Years Data Storage Export, for Home, Greenhouse

Very nice way to remotely monitor temperature. I use one in an unheated crawl space. It worked reliably through the winter as did the other two monitors. I bought another set.

The house is in the country and on a different electricity provider than our house is. Also, there is a poorly insulated (by me) pump house made of metal in which I put one of these. It's difficult to get the signal to it from the house through the metal and double sided foil lines flexible insulation, but I stuck an empty plastic bottle under the edge of the doorway to this janky structure and moved the sensor closer to the place where the bottle is and the connection has since remained stable. The pump house is maybe about 80 feet away from the router inside the house, so there is a lot of stuff for the signal to get through.I needed to be able to monitor when the temperatures dropped to near or below freezing inside the house and inside the pump house. These sensors have done the truck for me through a relatively long hard freeze here in Texas.So far, I've had to replace the batteries in 2 of the 6 sensors in 2 months and it looks like I'll be needing to change the rest of them soon. They seem to go from showing 2 bars of battery remaining to none as far as I can tell. The one I have in the garage (which was the first to need changing) is already looking like it will need changing again soonish. They're easy to change, but I really would like to get them on rechargeables once I've used up all of the batteries I currently have on hand.They seem relatively accurate compared to others weather stations inside and outside the house and compared to the officially reported temps. I calibrated them all in the same room before placing them in their final positions.Getting them connected to WiFi wasn't all that straightforward, and it took me a bit of time. Once I got one done the others were all easy though. Another reviewer here detailed something they did that made it work and I followed their lead. I can't remember what it was. I did not find the installation guidance of the app all that clear nor the app itself all that intuitive. There's a lot going on in that app that seems confusing and unnecessary to me, but that may be because they have so many devices available to buy and use on a hub - I'm not sure.At any rate, in spite of my hiccups with it, I'd recommend it. Just know you might hit snags with installation and search the reviews here for some tips. Also know you'll be going through batteries and put them in places easy to reach for ease of changing them out.For the price, being able to monitor the temps remotely in 6 different areas of my property and one at a relatively long distance away from the router, this set of sensors and hub is worth it to me. It provides me needed peace of mind regarding the temps and safety of pipes and expensive pump equipment by warning me via phone notification when things are outside of expected parameters.

Nice way to remotely monitor temperature at several places in my house during extreme cold. Readings match other thermometer in same space. Set up takes a little creativity (put each unit in freezer one at a time to know which one was which on the app), but once set they do what they should.

Works great! Not thrilled that it's something probably made in china. But it works for what I need, and that is to remotely monitor temps. Easy setup. Easy to use app. Has 3 sensors so you can monitor different areas of a building or outside. One battery in each. Seems to last fairly long, even on the one outside when its freezing cold all winter. Probably change the battery once or twice a year. As long as you have wifi for it to connect to, you'll be able to remotely monitor temp and humidity levels from anywhere using the app. And its nice to see historical data too, and the weather trends over various periods of time. It'll show the min and the max temps, as well as the overall average of the temp swings too.

Bought the Govee 5100's with the gateway (x2) in addition to extra 5100's to monitor snake enclosures. Obviously a bit of an esoteric use but regardless, well within the indications of these sensors and functionality.Set-up is incredibly easy. The Govee app feels like you are about to play a video game rather than set up a system of sensors and other connected devices. Not quite the streamlined professional appearance but it's fine for what it is. The sensors connect to the app seamlessly (initially) and then connect to the gateway and wifi easily. No complaints at all.Unfortunately, I don't believe anyone buys these devices so that they can connect them to an app and then walk away. These are monitoring devices for a specific use.While these devices are not lab certified equipment (I trained in biochemistry and molecular biology), they are advertised to measure within reasonable accuracy. And here is ONE aspect where this product utterly fails.When I set these up, I noticed that I was getting readings that varied by 1-2 degrees F between sensors that were nearly side by side. I then bought a thermometer with an NIST certificate to measure against these devices. This more or less confirmed that they are accurate within typically +/- 1 degree F. For what I need it for, I decided that this was acceptable so I continued using the sensors.BUT......after about 2-3 months of using these sensors and gateways I started to notice that monitoring the snake enclosures remotely was becoming less reliable despite no changes in my home wifi network. Since I travel a lot for work, remote monitoring is considered essential for me and a large reason I bought this set-up. More and more frequently, when I tried to update the sensors remotely the wifi would not update through the gateway.THEN, I started to notice some of the sensors would not update despite the wifi gateway updating the other sensors (I'm using around 12-14 sensors). The battery would indicate full yet the sensors were not updating. Changing the battery would only fix the problem about half of the time. Deleting the device from the app and reinstalling it would fix it about half of the time. The problem though is that some of these sensors would just completely stop being found by bluetooth when you try to reinstall them.Govee support has been responsive and has agreed to replace the sensors (I have still to actually receive replacements) but honestly I have no trust or confidence in these sensors and am going to probably eat the money and find something else that is reliable. I don't need laboratory accuracy but I do need to trust that when I am away the sensors I am using are actually working, are going to work and are going to last longer than a couple months.Overall, definitely would NOT recommend this unless Govee makes some real changes.