Solinst - Model 122 - Oil/Water Interface Meters - Datasheet
Solinst Model 122 Interface Meters are easy-to-use and give reliable, accurate measurements. A steady tone and light indicate LNAPL or DNAPL. Intermittent signals indicate water. Solinst laser marked PVDF flat-tape is available in lengths up to 1000 ft or 300 m. The PVDF Flat Tape is considerably more durable and easier to decontaminate.