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

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-random 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 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 v0.4 to v0.5 - 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 it is now at v0.9. 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. Apparently it uses the same chipset as my now defunct LIORQUE weather station (also reviewed) and the values it returns are generally almost identical. 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 large graph follows an import into Excel 2024 with no further changes (!) and the other two graphs show what Switchbot can display using its own facilities. ChatGPT can run riot with the exported files. The battery level remained at 100% for a long time and is 67% after 15 months so, if the app is reporting the level accurately, the batteries will probably last for about 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 four months, 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. Having had two other weather stations fail during the bad weather (huge temperature and humidity fluctuations) in January 2026, I am going to extend my Switchbot "estate" as the good build quality mentioned in the second paragraph matters ... a lot. It 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.

While these are larger than some other temperature/humidity sensors it means that the batteries will need replacing far less frequently than devices that use coin cells and rechargable AAAs can also be used. The IP65 rating means that they can stand a bit of moisture and can be used outdoors or in a kitchen freezer but they are not fully waterproof so don't put them in your fish tank for example. They transmit readings via BLE advertisement every couple of seconds and I have one in the shed at the bottom of the garden and can pick up its signals from the lounge which is well over 25m away with a couple of brick walls between them. The SwitchBot app can talk to them directly over Bluetooth/BLE or you can use any of SwitchBot's BLE/WiFi hub-capable devices to connect them to your SwitchBot account and access them from anywhere. From a Home Assistant server equipped with a Bluetooth radio, the local SwitchBot BLE integration also works well and you can use an ESPHome-based BLE/WiFi bridge node with the SwitchBot integration if the server is out of BLE range. Alternatively, the author of the Smart Home Scene web site has reverse-engineered the BLE announcements allowing you to use an ESPHome (or other tinkerer platform) device to expose the sensors directly to Home Assistant or whatever system you use. The sensor is pretty accurate out of the box but you can use the app to calibrate the temperature readings using an ice bath and SwitchBot provide step-by-step instructions for doing this.

For me, this is a 5* product. I’ll get into why after I explain the 4*. One of the indoor / outdoor sensors in my pack of three unfortunately failed its firmware update out of the box and became bricked. Thankfully, support have been amazing and sending me a replacement. The process was little hassle. That being said, I feel out of principle I cannot give a 5* right now. The product itself is brilliant. Compact (actually smaller than I was expecting), which makes it unobtrusive and good to put in tighter spots or even inside things (a terrarium for example). Connectivity is excellent. No hub or even an app are needed for this, you can hook it straight into home assistant over bluetooth. However, the switchbot app is great and has a lot of useful functionality. One of my favourite things about this is that you can just use it or take it with you anywhere and check temp and humidity on your phone. I’m a bit of a data nerd so i’ve taken it to all sorts of different places in the short time i’ve had it. Accuracy is hard to gauge without a benchmark I know is 100%, which i don’t have. But I believe they are very accurate, and did my research before hand to make sure they would be. Having a number of these sensors, they seem to agree strongly with one another. Which is reassuring. The one thing I will mention, is that their time to adapt to a drastic change in temperature +-20 celsius is quite long. Perhaps 20 mins or maybe a bit more. This is no issue, as the accuracy is stellar. But for some others this may be a concern. Overall, i’d highly recommend these.

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.

Ich habe das SwitchBot IP65 Thermometer Hygrometer 3er Set jetzt seit einigen Wochen und bin wirklich begeistert. Hier sind meine Erfahrungen: Verpackung und Lieferung: Das Set kam gut verpackt und vollständig bei mir an. Es sind drei Thermo-Hygrometer dabei, die mit kleinen CR2032-Batterien betrieben werden. Die Anleitung ist einfach und schnell zu verstehen. Die Geräte sind sehr leicht einzurichten – einfach die Batterien einlegen und die Geräte mit der SwitchBot-App verbinden. Design und Verarbeitung: Die Geräte sehen sehr modern und hochwertig aus. Sie sind klein und passen in jedes Zimmer oder auch draußen. Besonders gut gefällt mir, dass sie IP65-zertifiziert sind, was bedeutet, dass sie gegen Staub und Spritzwasser geschützt sind. Das macht sie auch für den Außenbereich geeignet, ohne dass man Angst haben muss, dass sie bei Regen kaputtgehen. Funktionen und Genauigkeit: Die Thermometer und Hygrometer messen sehr genau. Die Temperatur und Luftfeuchtigkeit sind sowohl am Gerät selbst als auch in der App gut ablesbar. Ich habe die Werte mit anderen Geräten verglichen und sie stimmen fast perfekt überein. Es ist auch super, dass ich die Werte immer in der SwitchBot-App sehen kann. Die App ist einfach zu bedienen und zeigt alle wichtigen Informationen auf einen Blick. Besonders praktisch ist die Funktion, dass ich eine Benachrichtigung bekomme, wenn sich die Werte zu stark ändern, zum Beispiel wenn die Luftfeuchtigkeit zu hoch oder die Temperatur zu niedrig ist. Vielseitigkeit: Das Set ist sowohl für den Innen- als auch für den Außeneinsatz geeignet. Ich habe eines im Wohnzimmer, eines im Keller und eines draußen im Garten. Die Geräte verbinden sich gut mit der App, auch wenn sie über ein paar Meter verteilt sind. Sie arbeiten zuverlässig und liefern immer die gleichen, genauen Werte. Fazit: Ich bin wirklich sehr zufrieden mit dem SwitchBot IP65 Thermometer Hygrometer 3er Set. Es ist einfach zu bedienen, liefert genaue Werte und ist gut verarbeitet. Die Geräte sind vielseitig einsetzbar, sowohl drinnen als auch draußen. Für den Preis bekommt man wirklich gute Qualität. Ich kann das Set auf jeden Fall empfehlen – klare 5 Sterne!

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