Plexiglas bar (15 cm x 4.5 cm) with upward curved end possessing a port for positioning at 60° or 90° relative to the sample level the DIVING-PAM-II fiber optics. Mounted to the curved end is a 5.5 cm x 7.5 cm (W x H) sample clip consisting of a Plexiglas plate (lower part) and an aluminum frame open to the top (upper part). Featuring a 10 cm long plastic grip with button for triggering measurements via a 1.5 m trigger cable. Including a 1 m long tubular net with zipper to keep together trigger cable and fiber optics. With holder to for spectrometer MINI-SPEC