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ProODO Handheld Optical Dissolved Oxygen Meter - ENVCO Global
Dissolved Oxygen Meter - YSI Model 58, Digital for Line or Battery Operation, Water Resistant - YSI Dissolved Oxgen Meters or Accessories - Dissolved Oxygen Meters - D-F - Products
YSI 5000 and 5100 are ideal laboratory instruments for BOD tests. Both instruments feature: auto-calibration, large, graphic displays and low keypad profiles for maximum ease of use. | ysi.com