Smart Digital Thermometer Hygrometer, WiFi Indoor Temperature Humidity Sensor with App Alerts, Mini Room Temperature Meter with Data Storage and Export, Compatible with Alexa. 4PCS

Work Great with Alexa
Excellent device, I use them with Amazon Alexa!

Kinda worked at first
Initially 3 out of 4 worked and served a basic purpose though the updates to app were very slow to update. At some point they decided to revamp the Smart Home app and it dropped all of the devices at the worst possible time. Now I can’t get a single one to pair. Nothing but frustration and disapointment.

Very small LCD, stuck in metric, and updates kinda slowly through the internet.
The device is a ‘TH02 Pro’, which is a generic Tuya enabled device (TH02, ‘pro’ for the LCD). Thus, you can use this with services and apps that are in some shape or way compatible with Tuya. So, you can use this with not just the ‘SmartLife’ app (just a reskin), but with Tuya proper, and then be able to pair it with third-party and/or open-source services… but it’s not that ideal.Critically, this device connects to the internet and updates its measure every hour (perhaps as low as 10 minutes?) to save on battery life. This really makes it useless if you want to remotely check on it on-demand, which is something the Americans in the chat will do because the LCD will not set itself to fahrenheit no matter how much I try.||| (For those interested in brute-forcing it: the ‘Set’ page is in the navbar at the bottom of the screen as ‘Setting’ once you tap the device card — the device card shows you a page that attempts to shows you a historical graph, which never does for me, just a singular data point in time — the Settings page implies that at pairing the device should have copied globally set settings at account creation. I had set my account to fahrenheit, the device is shown as having been set so in the app, but the LCD never updates.)This thing has BLE, but it might as well be used as a means to use the device without setting up WiFi because I’ve never gotten the app to visibly use it and read status changes faster than the aforementioned interval window for WiFi.For those searching the keyword ‘Home Assistant’ (and/or ‘Tuya’), yes, this does appear via the Tuya integration (the device type being a recent addition it seems). It had the tendency to hang, timeout, and culled by HA when initializing when I added this device for the first time. Issues like this may go hand in hand with the aggressive power management, such as the inability to pair this with LocalTuya since it is not a device that is on the network to actively poll (you can search Github on this).Bottom line: Buy this if you’re want the IoT function and are okay with the Chinese ownership/inherent privacy issues (ik ik, pick your government of choice to be ‘spied on’), and the Chinese business operating style (how their apps are made, how quickly they’ll drop support of products, etc). If you’re not interested in data-logging, (some form of) remote logging, app use, buy anything else in this site as it will be cheaper and the LCD display bigger than this miniature thing.

Very cool device
I can now ask Alexa for the temperature and humidity of 4 rooms in my house, from upstairs living room to basement studio.

Fait ce qu’on lui demande de manière precise

Super praktisch, klein und handlich. Batterie hält relativ lange. Nutze es um im Meerschweinchen Gehege die Temperaturen zu kontrollieren. Das klappt wirklich sehr gut. Minusgrade und auch heiße Tage macht es perfekt mit. Praktisch weil man alles am Handy kontrollieren kann. Ich empfehle es weiter.