Got mine from Aliexpress, works well some times have to zap the sensor 2 or 3 times but great for writing codes to the ECU and just checking the tyre pressures without moving the bike.
I use the GS911 not tried my Motoscan app for this.
If you fit a new sensor and wake it up it will remove the old code for that wheel in the ECU and automatically write the new code.
No sounds beeps etc. But you can see it happen when you view the results on the software.