Milwaukee Instruments Lightweight Portable Dissolved Oxygen Meter, 1.94 lbs

Milwaukee Instruments Lightweight Portable Dissolved Oxygen Meter, 1.94 lbs Fast, easytoread results with a large digital LCD readout Repeatable accuracy to ±1.5% FS Lightweight and portable design for convenience Simple 2point open air calibration Utilizes MA840 reinforced polarographic probe with an oxygenpermeable PTFE membrane sensor Includes 5 orings, membranes, and one protective cap 10 feet probe cable for extra flexibility during testing 70 hours of battery life with continuous use (battery included) and low battery warningYou may also like Milwaukee MA917B/1 Refillable Combined Glass pH Electrode with Double Junction and 1 Meter Cable.