This is a holder for a fingerprint sensor
(https://www.amazon.com/gp/product/B07BQ9VNWR/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1). It has two pieces a base and a top. Both can be used or just the base. This is fitted to use on the model O40 sold on amazon.
fingerBASE.stl | 55.3KB | |
FingerTOP.stl | 68.4KB |