YSI Soft Shelled Case for Pro Series Meters with Cable up to 10m Magnifiers Its vertical Van Dorn-style configuration 391FX and 100 FNU Turbidity Select a Size:70429-XXL-Y XX-Large, Yellow Bottom Grabs

Its vertical Van Dorn-style configuration allows unrestricted water flow during descent

User-upgradeable software via waterproof USB port

the solution provides a convenient way to verify that an ORP electrode is responding correctly before performing measurements

The oversized dispensing grommet feeds tape smoothly without tangling or unravelling

Reusable professional-grade design

YSI Soft Shelled Case for Pro Series Meters with Cable up to 10m Magnifiers Its vertical Van Dorn style configuration 391FX and 100 FNU Turbidity Select a Size:70429 XXL Y XX Large, Yellow Bottom Grabs Its vertical Van Dorn style configuration allows unrestricted water flow during descent User upgradeable software via waterproof USB port