Tbd-99 Turbidity Meter for Industrial Use Shandong Dongrun Instrument Science and Technology Co., Ltd. Base Info Model NO.:TBD-99Trademark:DongrunTransport Package:One Set in One CartonOrigin:Yantai, Shandong Description Pre:Tbd-99 Online 4-20mA Immersion and Flowcell Type Turbidity Meter Next:Portable Type Cod Meter High Precision