The BioPAT® Fundalux probe has a 12 mm probe connection, an optical path lenght of 5mm and an insertion lengths of 320 mm. The BioPAT® Fundalux probe is an absorption-based photometric probe that uses light from 840 nm to 910 nm to measure the turbidity in bioreactors and fermenters. This probe is applicable for a 5L and a 10L Univessel®.