Hanna Instruments Portable Dissolved Oxygen Meter

This water-resistant meter measures dissolved oxygen up to 300% saturation or 45 ppm (mg/L) with automatic temperature compensation and automatic calibration. The meter allows for altitude compensation up to 4,000 meters and salinity compensation up to 80 g/L. The polarographic probe has a removable protective membrane cover. In addition, the meter features a low battery indicator, Good Laboratory Practice (GLP) functions, and auto endpoint to automatically freeze the display when a stable reading is reached. On-screen tutorial messages make operation easy. Includes meter, probe with 4 meter (13.1’) cable, two spare membranes, 30 mL electrolyte solution, batteries, rugged carrying case, and instructions.