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 have tried a couple of brands of smart thermometers (Aqara and SensorPush) and I found these Switchbot sensors to be the best bang for the buck vs those other brands. The Aqara sensors kept randomly dropping their connection and the Aqara app was not very well polished. The SensorPush sensor and app work great, but they cost a lot more and do not sync with the Apple home app. The Switchbot sensors are easy to setup, and so far the connectivity has been 100% reliable for me (two months in) and the temperature readings seem accurate. They typically match almost perfectly with the temperature on my SensorPush sensor . The Switchbot app takes a little getting used to at first, but once you have it down it is a very data-rich and intuitive interface that I have really enjoyed using (especially over the clunky Aqara app). I use the Switchbot app to look at detailed temperature data, but I also have it synced up to Apple Home via the Switchbot Hub 2 so I can see the current temperature in the Home app. I do wish the Home app showed me the temperature history, but I don't mind using the Switchbot app for that instead. If you are a fan of the Apple Home app to control your smart home I think these temperature sensors are the best ones you can get! The temperature sensors and Hub 2 are the only Switchbot products I currently have, but based on my experience thus far I am sure they will not be the last Switchbot products that I purchase. I already plan to get more temperature sensors in the future. I highly recommend these!

Initially, I was hesitant to get these, as I really needed a bunch that would really work in different environments. After a year of use and adding about a dozen to my Hub 2s and working with Matter on Apple Home, I have to come back and just gush about how incredible these are! First: when paired with the SwitchBot App and cloud services, these things are incredibly. They store loads of data that can be viewed in the app on navigable graphs. Even better: you can just mass export the data to spreadsheets to view elsewhere. Second: the Bluetooth range is insanely good. I have some in my refrigerator and I can connect to them in my bedroom. Yes, it’s still Bluetooth so, the connection is hampered by the fridge door & bedroom door, but that it is even possible is a testament to how good these things are. I wouldn’t rely on the Bluetooth for my scenario, however, and I don’t have to: I can use the cloud services to more reliably connect. Third: Matter is excellent for these when paired with Hub 2 and my Apple Home Hub. The SwitchBot App treats both the temperature AND humidity readings of these as 1 device for Matter. Still, Apple has been able to treat the temperature and humidity sensors as distinct “devices” connected to the Hub 2…which is exactly the best case scenario (I save one of the 8 Matter Device slots that you are limited to per Hub 2, but still get 2 devices in Apple Home). Fourth: These really do work in harsher conditions. I have them in a bathroom that has regularly surpassed 70-percent relative humidity, in my freezer, and in my refrigerator.i haven’t had any issue. You can hang them via the lanyard, drop them on a shelf, stick them to a wall with the included 3M tape…I’ve eveb used command strips with them! They really are a value: especially when you get multiples. The sensors are just as good as the Meter Plus (which I also use), but without the screen, a longer Bluetooth range, smaller form factor, and higher whether resistance ratings.both are excellent for seeing trends and checking in on the climate at any point in time. The more you have, the better: I’ve been able to track micro changes in my apartment to fine-tune a dehumidifier. I went from a swampy house to one that is actually comfortable in part because of these. Highly recommend these! Hope this helps!

Actually works great and somewhat and easy to set up. Great value for price. The readings can be change from Celsius to Fahrenheit. Adding another device and trying to change device name doesn’t work well it defaults to the first device. Now I feel better knowing how my comfortable my chickens are. I have one in the chicken coop and one in the e chicken run.

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.

I grow photoperiod plants and can't go into garden at night to check readings of thermometer and hygrometer during dark hours. This little device allows me to accurately adjust the space heater to save some watts and still avoid dewpoint with confidence. The electricity I save will pay for this probe in no time. Not having to reference a dewpoint or VPD chart is a bonus. I like that I can export the data. I'll link that file to a spreadsheet and automate the generation of graphs, min/max data, etc... The app is okay. It works well enough. You can adjust scope of displayed line graphs for daily and larger, but not for hourly. The text is really small and hard to read in spots. It has a ton of advertising and marketing that you can avoid, but i'm not a fan of it having a "shop" feature. It's intrusive and unecessary. thankfully it isn't prevalent in the 'home' screen and you can avoid see it, but it's still there wasting space and resources turning my device into a gd billboard for commercials... that's ridiculous. Outside of the intrusive marketing nonsense, I'm glad I bought this product. Purposefully hamstringing wifi connectivity so that you have to buy their hub is contrived and lame, though. Some business practices are a bit sketchy it seems. Update: They just erased my last update.. They have designed this product to be annoying by design. It cannot even do a simpe file export to my desktop nor write the exported file to the phone's memory. Instead you have to log into 3rd party site in order to get a ling to MY file? Why am i even connecting to any location on the internet when i do not need to? This is ridiculous. They blamed this on the android phone, as if they don't write their app and have no control over how THEIR app works. If i wasn'at technologically inclined, i may have believed their poor excuse. Also, this junk needs the hub for certain functions, which again is totally unecessary. you can see other products work directly from the app on the phone. This is a choice by the manufacturer. A choice to make you more likely to log into some nonsense 3rd party site to collect info and allow access to my file.. it's not 'their' file. There is no reason for them to write an app that functions this way unless by design or simply incompetent. Overall, a lot of shady behaviour here.. unnecessary hoops that probably benefit them or their partners in some way or simply not good at writing a companion app. Flip a coin.

I purchased this to track the temperature in a portable cooler while multi-day camping in 80+F weather. I'm using a Bodega battery powered cooler that reports its temperature on its control panel. Since the cooler's temperature sensor must be inside a cooler wall, I wanted to know what temperature the food at the top middle of the cooler was maintaining while camping. In testing the SwitchBot at the bottom of the cooler, its measured temperature agreed with the cooler's measurement after a long equilibration period of 1hr as the thermometer adjusted from 79F to 32F. The cool down time was measured from data recorded in the SwitchBot app. Overnight measurements averaged 32F in a range from 30-34F in perfect agreement with my expectation and the 32F set on the Bodega cooler. The SwitchBot app has a logging function for tracking temperature changes. The thermometer stores measurements until the app connects and downloads the stored data. It is not necessary stay connected to the bluetooth to track recent temperature history. I'm not sure how long 'recent' is but it seems long enough for my purposes. Overall, the app works well on my iPhone. It connects to BLE quickly and provides displays of up to 31 days. I am satisfied with the purchase for my use. The SwitchBot thermometer also agrees well with two other trusted thermometers at 78F without calibration. When I initially received the thermometer, I thought that the thermometer required calibration of up to 4-6F after a 30 min wait both at room temperature and with the suggested 30 min time. I left it overnight and the next morning noticed that I needed to eliminate that calibration to match my other thermometers. An equilibration time of 30 minutes might be appropriate for small changes in temperature, but a much longer equilibration is required for large changes. My thermometer does not require calibration.

Okay, let’s talk about the SwitchBot IP65 Hygrometer Thermometer—or as I like to call it, The Battery Vampire Slayer. I bought this little gadget two years ago because apparently, I’m the kind of person who needs to know the exact humidity level in my living room at 3 a.m. Spoiler alert: it’s usually “uncomfortably moist.” What’s wild? I still haven’t changed the battery. TWO YEARS. I mean, is this thing powered by tiny hamsters running on wheels? Or does it have a secret pact with the battery gods? Meanwhile, my phone’s battery dies if I look at it wrong. It’s IP65 rated, which basically means it can survive whatever apocalypse your weather throws at it—rain, dust, your cat’s claws, or that time you spilled coffee and decided not to clean it up for three days. Still ticking. Like a tiny, weather-obsessed superhero. The wireless feature means I can check my house’s climate from my phone without leaving my couch, which is great because getting up is overrated. Plus, it’s saved me from countless arguments about “Is it too humid in here or am I just sweating because I’m stressed?” Bottom line: If you want a gadget that quietly judges your climate obsession while outlasting your willpower to do chores, SwitchBot’s Hygrometer Thermometer is the one. Two years strong and counting — honestly, I’m half-expecting it to start sending me motivational quotes next.

These devices are great value. The mobile app (iOS) was easy to find, install and set up. The user interface (and adjustable graphs of readings) are intuitive and easy to read and use. A minor UX glitch occurs when attempting to vertically swipe (scroll) in the graphs view. If you touch the wrong horizontal region of the screen at the start of your swipe, the UI interprets your gesture as an attempt to add or hide the point-in-time line and readout - and halts your swipe. I have high faith in the accuracy of the temperature readings and battery life. I have compared the reported temperature to several other devices. As for accuracy of the relative humidity and dew point readings, well, maybe it is best to say that my unit may have come mis-calibrated from the factory. Or perhaps it is outright defective. On hunch, I placed the device into a water-tight glass jam jar. See images. As you can see in the chart screenshots (all three from the same 24 hour period), despite being in a sealed jar, the dewpoint reading changed 6 degrees fahrenheit over the day. During the same period, the temperature dropped and rose 10 degrees. The temp and dewpoint are tightly and positively correlated - and should not be. (Dewpoint is solely a function of the amount of water in the air, and neither water nor air could enter or leave the jar. Further, the temperature was never even close to the highest reported dewpoint, so condensation was not a factor.) Overall, reported dewpoint is bogus, and significantly so. Has anyone else observed this? Is there a straightforward fix?