Mini USB Spectrometer Spectromètre Spektrometre - Alluminum case


![](upload://rUhJK8wjzVMgk6SgPdp34E6ZjSa.jpeg)
2- Transmission of filters (there is an example of a Clean Line filter and one for a Long Pass filter).


This is a companion discussion topic for the original entry at https://www.ebay.com/itm/Mini-USB-Spectrometer-Spectrometre-Spektrometre-Alluminum-case-/283451821822