SwitchBot IP65 Indoor Outdoor Hygrometer Thermometer Wireless, 394ft Bluetooth Range, Refrigerator Thermometer, Dewpoint/VPD/Absolute Humidity Sensor, Free Data Storage Export, 2 Years Battery Life

I love seeing complex electronic communication systems at work
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.

Good product, good customer service
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.

Not good for monitoring incubators
Go not work for my purposes. I bought these sensors to put in my incubators to ensure the temp & humidity was accurate for hatching. I have tested these sensors several ways and cannot get stable and consistent readings from them.After days of getting fluctuating and varied readings from these sensors I tried place all three sensors in the same incubator as closely together as possible and out of the way of the fan. After an hour they were still giving off three quite varied readings – 100.4, 103.1, & 99.7. Very frustrating because they advertise that the sensors are highly accurate.The app works quite well and the alerts are easy to setup and use – however what good are they if I don’t know if I can even trust the sensor’s reading?UPDATE: I contacted customer service about this issue. They recommended calibrating the sensors by the ice bath method. I was told to place the sensors in a plastic bag and submerge them in a bowl of half crushed ice and half water for 30 minutes – they should then show 32 degrees.I started this process at 3:28pm. As you can see in the attached pictures, each of the three sensors took a full hour or more to register 32 degrees. At 30 minutes they were registering from 35.1 to 36.7 degrees. It took the additional 30+ minutes to get all the way to 32 degrees.Once the sensors were down below 33 degrees I got quite a few “Hub offline” errors and had to repeatedly try to force the app to refresh the data.It seems that maybe these sensors are just very very slow to acclimate and do not perform well in too low or too high of temps, which is disappointing in an “outdoor” sensors.Makes me question how long it would take for a small change in temperature to register.Overall, these sensors do not appear as though they will be good for use in the incubators as they do not seem to be as accurate in the 95-105 degree range and they are very slow to acclimate which would cause delays in reporting an issue in temp fluctuation in the incubator.

De thermometers zijn mooi afgewerkt en niet groot. Het batterijdeksel is afgewerkt met een rubber dichting. Werkt op 1 AAA batterij (meegeleverd).De app is handig en een mooi overzicht van meerdere weken. Verbinding is via bluetooth rechtstreeks in de app of via een Relais (apart aan te kopen) via wifi.Ik kocht een 3 pack zonder display en ben er heel tevreden over.

Voici quelques semaines que je l’ai installée sans problème.Il fait parfaitement son job, facile à utiliser.