Hi @clyra,
are you talking about these?
https://www.aliexpress.com/store/product/New-Original-Xiaomi-Aqara-Temperature-Humidity-Sensor-Smart-Home-Device-Air-Pressure-Work-With-Android-IOS/2144029_32887275362.html
Do they work without a Xiaomi gateway, i.e. with this?
I’d like to get a few battery-operated temp sensors, but don’t want to add another gateway to my setup.