Please photo your rpm tacho

check out these links:

Drehzahlmesser nachrüsten - Renault Twingo 3 Forum

Autool X60https://www.amazon.de/Autool-X…%20X60%2Cp_76%3A419122031

www.twingo3-forum.de

Some use their Smartphone with Apps like TORQUE in combination with a bluetooth OBDII-Dongle

This is how it looks like on my mobile.
I'm using Samsung S10, Torque Pro, Bluetooth OBDII-Dongle.
With Torque Pro you can configure up to 80 working displays.

Torque - RPM view.jpg

@sebomaster use one post for ur problem and asks