SwitchBotIP65 Indoor Outdoor Hygrometer Thermometer Wireless 3Packs, 394ft Bluetooth Range, Refrigerator Thermometer, Dewpoint/VPD/Absolute Humidity Sensor, 2-Year Battery Life, Free Data Storage

UPDATE: SwitchBot reached out. They honored the warranty and shipped me out a replacement quickly. I would recommend they update their website with the detail that they will warranty items bought through their official Amazon store. Solid customer support!!Generally these work well and seem accurate. They are easy to setup and use either in their app or as I have them setup in Home Assistant. I had 1 out of 6 completely die in less than a year. It was a unit used indoor and never moved, so hardly a tough service environment. New batteries and no light and can't reset it. Just dead.Battery life is strong as long as you have a bluetooth receiver/BLE proxy very close to them. Otherwise, life is about 8 months, which is reasonable. Get rechargeable NiMH AAAs with a charger on Amazon for $20 and you'll be in batteries for these for life.

I hang an "Outdoor Meter" from the basement ceiling. Meter comes with a loop for easy hanging. I didn't get a hub, I just use Bluetooth to see what's happening.It might be interesting to hang another outside by the north side of the building, where the sun never shines. But there are enough personal weather stations in my neighborhood on the Internet, so generating my own data would be redundant.If I had to find a complaint, it would be that I have to make my Android tablet attempt to connect to the meter a few times before there's a successful connection, before the data starts rolling in. Tapping the tablet a few times before getting a connection isn't a big deal, except that it wastes a minute each time before you realize the request failed.The SwitchBot app is real nice. I like moving graphs, and it moves swiftly as a day's readings come in. The meter will save a huge amount of data if you don't connect for a long time. When you finally connect, the graph will slide along as the meter downloads its saved data up into the app. Practically, you can check out a lot of history whenever you finally get the chance to look it over. You can zoom in to an hour's graph, or more compressed to display a day's, week's, month's, year's. You can adjust ("calibrate") the SwitchBot app so its readings match the local thermometer/hygrometer. Good enough for government work.My dehumidifier can be adjusted in digital increments of 5% each. When I changed the adjustment from 45% to 40%, the humidity in the basement dropped from an almost constant 46% to an almost constant 43%. Just goes to show you. Well, it's only been a day, maybe it'll drop a couple more points over the next couple of days.A month or two later...Replaced antique cellphone with modern, compact, Google Pixel 8 cellphone with Android 14. When I go looking for SwitchBot data on Bluetooth, the connection hooks up fast, without me having to keep trying over and over. Surprisingly, the performance is much better than the tablet with Android 12, even though I'd expect the tablet to have a bigger antenna, etc. I don't think it's a matter of Android 14 being better than 12; I think simply the radio in the phone is better. But I don't know. Anyway, it proves that the SwitchBot can react quickly, given some good hardware talking to it.4 months old...SwitchBot reports its battery is at 98%. My math is wanting, but... If 4 months used 2%, 100% will take 200 months, about 17 years. I'll let you know.On the very nice Android 12 tablet, 1 hour of data rolls in every 2 seconds. On the Pixel 8 phone with Android 14, the data rolls in so fast, it's hard to be accurate, but it looks like the data rolls in at 2 or 3 hours of data every second, about 4 or 5 times faster than the tablet.11 months old...SwitchBot reports battery is at 89%.I got my SwitchBot for about $8. Ever since, the price has been $15. I'd have bought another two more, but I can't bring myself to do it. Wish they would run some intermittent $8 sales... I guess it's the Supply vs. Demand curve. Micro Economics 101. They discovered their product is more popular than they expected. Well, it works good.

so I had a previous review that I had to change to this much better one after my experience. I ordered one of these to replace one I dropped and broke. I could not get it to connect no matter what I did, so I sent it back very disappointed. The seller contacted me multiple times offering to make it right with multiple options. I decided to give them another chance and they absolutely came through. The item was shipped out super fast and it connected and worked perfectly right out of the box. I had a great experience with the first one, until I broke it, and Im very happy with the replacement to the replacement. Good customer service is a rare thing these days and Im impressed with their commitment to making things right. Happy SwitchBot customer once again.

I love these little sensors. I have a couple of them inside my house in closets/storage areas where I want to monitor temperature and humidity.I also have one that I keep outside to monitor outdoor temps, especially important to monitor my plants for freezing and our brutal summers here.I monitor these with the switchbot app, Google home app, and in home assistant via bluetooth. I get nice graphs and can take actions based on temps, etc.Also, the price is right!