SwitchBot IP65 Indoor Outdoor Hygrometer Thermometer Wireless, 100m Bluetooth Range, Refrigerator Thermometer, Dewpoint/VPD/Absolute Humidity Sensor, Free Data Storage Export, 2 Years Battery Life

Super device, I will not describe the operation with the Switchbot app, and focus on Home Assitant. The device is relatively small for a device that uses AA batteries, has a very cool, rounded shape, and comes with a 3m adhesive pad or ribbon for hanging. What is important, changing the batteries does not require a screwdriver and will take maybe 2 minutes, the problem may be opening the flap after sticking the sensor flap to the wall. I put the sensor into pairing mode by pressing the reset button for 2s, Home Assistant with bluetooth integration found it right away, I use Bluetooth integration in HA, and Switchbot Bluetooth integration, and this Sabrent BT dongle for under £6 - https://amzn.to/460Du0B - After adding sensor to HA, I also decided to try adding it to the SB app, I put the sensor into pairing mode again by holding the button for 2s and added it to the Switchot app. Interestingly, the sensor communicates with both devices, the phone and the HA. The sensor is very effective, it sends changes every 0.1 degrees, compared to the very expensive Philips Hue sensor, I would say that Philips is very slow in reporting changes, sometimes you have to wait and from 15minutes, and the motion sensor stopped working after a year. Super product, I will certainly get few more, for example, to monitor the refrigerator, so I put sensor into the refrigerator and I had a preview of the temperature and humidity from the refrigerator!!!! I might be tempted to replace some of the Xiaomi sensors. I sincerely recommend!

I love this, it’s easy to set up, I use mine in an outside solar inverter and battery housing. It’s a IP65 rated so it’s ideal for where I want it. It gives accurate readings and it’s easy to read. The app is also easy to use and gives lots of information. I’d definitely buy again.

A nice simple sensor that that works. It is a breeze to set up with Home Assistant. I use cheap Kirkland AA batteries from Costco. I don't think they last the advertised 2 years, but they certainly last... The only minor problem I had was intermittent connection that suddenly appeared, and didn't go away even after replacing with fresh batteries. The problem turned out to be the battery terminals within the battery sensor enclosure which weren't making contact properly. I bent these back out with a knife to improve contact and the problem quickly went away.

Great humidity / temperature monitor with much better Bluetooth range than the other unit from SwitchBot with LCD screen. I use it to monitor humidity and temperate in my attached garage, it works flawlessly. Enable cloud stats to view away from home.

I have tried a few Bluetooth weather devices, and this Switchbot is the cheapest and best. Physically, its advantages over similar devices are that it uses standard batteries (2xAAA, supplied) rather than a semi-randomly chosen button battery, and that it is visibly waterproof - it is a smooth white plastic box and the battery compartment lid has a seal round it. Also, the nylon hanging loop is as new after 18 months outside and is far better than a hole in the back meant to go over a hook or a nail. I was surprised, for such a cheap device, to find that it supports firmware updates, as there was a notification in the app on the first Bluetooth LE connection. It updated in a couple of minutes from 0.4 to 0.5 - an odd version number for a released product - and, as is almost always the case now, there was nothing stating what the update fixed or improved. But the facility is important. In fact, there were four firmware updates in the first three months and the current version is 0.9, although there has not been a further update for over a year. The app is also updated every few weeks, and there is the option to try out beta versions. The Bluetooth signal is evidently good, and not entirely line of sight - I can transfer data into the app from a room about 60 feet away with the device slightly hidden round a corner of the house. Caching is well implemented and only new readings are transferred unless you explicitly clear the cache from within the app; this greatly speeds up everything as the device quickly accumulates thousands of readings. When I got a new phone it took 20 minutes to transfer all the readings. Its accuracy is better than that of my old Bresser weather station, which cost several times as much but badly underestimated temperatures. Here the quoted accuracy (+ or -0.2C) is, in itself, accurate in my experience. Another Switchbot advantage, although it gets oddly low ratings in Google Play, is the app. It looks good unlike many similar apps, is simple to set up and use, and data export is easy - select a date range and readings are exported to a comma separated values file in a defined time step. Exporting a reading every minute gives a huge 1.7MB/month file, but exporting a reading every half hour amounts to 50KB/month. I can produce graphs very easily from the exported file - the big graph follows an import into Excel 2024 LTSC with no further changes and the other two graphs show what the app can display itself. The battery level remained at 100% for a long time and is 58% after 18 months so, if the app is reporting the level accurately, the (standard alkaline) batteries will probably last for longer than the two years advertised. The Switchbot is an excellent data gatherer. If it could record barometric pressure as well as temperature and humidity, it would replace everything weather-related here. I use a second (ancient) Android phone to provide a semi-permanent display. A minor issue is that the instructions state that the temperature sensor is good to -20C, but the device is recommended only to be used at 5C or greater. It has been down to -6C, with whole days below 5C, and I have noted two missed readings in over a year, which were both when the temperature was well above 0C. Most impressive was that I discovered a bug when exporting. I raised a ticket in the app; there was a comment back about three days later that it was being "escalated to senior technical staff", then after six days there was a fix available in Google Play! That speed of response is otherwise unheard of in my experience, where technical comments are often not even acknowledged. As I had two other weather stations fail during the bad weather (huge temperature and humidity fluctuations) in January 2026, I extended my "Switchbot estate" as the good build quality mentioned in the second paragraph matters ... a lot. This device was the only survivor. £15 (£11 with a coupon) is an absolute steal for something which would have cost many times that a few years ago for the same functionality and would certainly have been less robust and less easy to use.

What I was looking for was a wireless temperature data logger to capture the temperature in my house in the Hall and also the corresponding temperature outside with a reasonably high sample rate 24x7. This was so that I could see the rate of heat loss from the house when the space heating is off and also the effectiveness of the space heating when on. I bought 2 of these sensors and placed one indoors adjacent to the Hall thermostat and another outside on the roof fascia board. They come with batteries fitted that are said the last for up to 2 yr and are waterproof for use internally or externally. The devices use bluetooth to transmit data from the sensor to a Switchbot phone app. The phone app is easy to download from Google Play or Apple Store and shows instantaneous temperature and relative humidity, and dew point as well as continuous time history plots of temperature versus time with a sample rate of about 15 minutes. The sensors come with clear instructions and are every easy to pair with the app via bluetooth and initially the use may find that the temperature and humidity readings appear high but the device has a self calibration mode on start-up and soon moderates to an accurate reading. In my case, the temperature took less than half an hour to coincide with the reading on my Hall thermostat. From there on the readings have been very reliable and the temperature time histories show the rise when the space heating comes on according to the time clock and Hall thermostat controls and the rate of decline when it goes off. The app also gives max and min temperature over the selected time period of day/week/month/year and the average. Recordings continue until you choose to reset the sensor in the app effectively to start afresh. You can also download the data for your own records. Correspondingly, the sensor/app records and displays relative humidity as a time series etc all exactly as for temperature. In summary, this is an excellent wireless sensor that does exactly what I was looking for. Anyone who wishes to data capture temperature and/or relative humidity 24x7 and view the time histories of these parameters graphically on a phone or tablet with the data transmitted from the sensor to the phone/tablet wirelessly over bluetooth should look at this device. They are good value for money.

Would be 5 but no instructions on how to get the back off to start the batteries running. Eventually found someone's YouTube video and they just flicked the panel off but it isn't obvious. After that it has worked fine with the app.

I cannot recommend these items highly enough. Small and compact they can be placed around the house to measure room temperatures and relay the information to a phone or tablet in real time. The hub is useful in several ways (although not essential). It can act as a relay point if a sensor is too distant to talk directly to your tablet avoiding the need to walk a little closer. It also stores data so the graphical view on the tablet is instant. The hub can link to four sensors. A non connected sensor can take a few seconds to build up the graph data. For those who are tech minded these are useful for monitoring heating set up and performance or in fridges and freezers although I have not tried this use. Isuspect the signal may be blocked by the metal work so the graphical data would only update when the door opened although would remain stored in the device meanwhile. Humidity data is handled in the same way. The data seems to be accurate in that several sensors together read the same. Note there is no temperature or humidity display on the device.

Używam czujników od dwóch lat i mogę jasno stwierdzić, że to świetne gadżety, działają bezproblemowo i do tej pory nie wymieniłem baterii ani razu. Leżą na zewnątrz i wewnątrz lodówki, zapewniając mi stały, wyraźny obraz temperatury i poziomu wilgotności. Pomiar jest precyzyjny i niezawodny. Polecam te produkty.

Returned. Bluetooth range not working for greenhouse location.

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.

Ik had al drie sensoren en een hub gekocht. Dat werkt super. Nu drie sensoren erbij gekoppeld. Koppelen ging heel gemakkelijk en nu heb ik in de app en heel handig overzicht van alle temperaturen van alle ruimtes op een scherm, zoek binnen als buiten! Werkt heel goed! Is inclusief batterijen, dus prijs vind ik ook redelijk.

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