LinknLink Thermometer and Hygrometer eTHS, WiFi Smart Temperature and Humidity Monitor Sensor, APP Phone Alert, TH2MQTT Home Assistant, Works with Alexa Google Home, No Hub Required

I had a number of Zigbee temperature and humidity sensors around the house to monitor how well the central heating works in each room but needed to add a wifi temperature sensor in the garage as the Zigbee signal doesn't reach that far. I saw this reviewed on YouTube and am glad I bought it as it seems to be accurate and the USB power, rather than batteries, suits me well as I don't have to run around changing batteries all the time. Has never lost connection in the six months I've owned it and works well in Home Assistant. Will probably buy some more for monitoring the temperature in the garden and greenhouses.

Used to have missing chunks of data and couldnt connect. since firmware update has been excellent with no issues.

I can't believe I'm the first to review this unit. I'll start by saying it doesn't take batteries, so you'll need a usb plug or port nearby. The setup of this unit was super easy and you'll have it working in about 5 mins. Currently there is a few ways to get it to trigger a routine and work with Alaxa and there is quite a lot of scope that's not immediately obvious. I can't say enough about the fantastic tech support for this product. I would thoroughly recommend this product especially at the insanely low price. It's a really good sensor with a great app.

works with their LinkLink app but not with Smart Life App im on 2.5gh as well unless im missing something

the hack for Alexa makes this really useful