Hi Girit,
Sorry I don't go on Iceinspace everyday so I missed your message.
The camera is 4 years old.
The filters and the wheel are the ones provided by QHY with the camera.
There is no mark on the sensor. I can take a picture of the sensor next week if you want.
Please find some of my images on the link below.
https://www.astrobin.com/users/Q/
These were made of Light and Dark frames only. I have never tried to use Bias and Flat frames.
Cheers,
Q.