liquid level indicator for blind

I tried to make a version of a mechanical liquid level detector for the blind and visually impaired, which does not require batteries or any additional spare parts. I will be very glad to any comment from users

A very simple device: When the level of the liquid in the cup rises, it raises the float inside the body. If you can feel the pin with your finger, then indicates that cup almost full

Printed with PETG, 0.2 mm layer hight