Use APKPure App
Get 3C Icons - CPU Temp (°C) old version APK for Android
Temperatura CPU nera (° C)
Requires 3C CPU Manager or 3C Toolbox (https://3c71.com/3c).
Shows CPU temperature in Celsius in white notification bar.
Optional:
- Show graphic time-line
- 2 Temperature triggers (popup message + vibrate/sound)