Features:
*1 or 2 points calibration using the air-saturated water or zero oxygen solution.
*Salinity and barometric pressure compensations eliminate the measurement error.
*Automatic temperature compensation ensures accurate readings over the entire range.
*Auto-Read function senses and locks the measurement endpoint.
*Auto-Power Off effectively conserves battery life.
*Setup menu allows setting the number of calibration points, resolution, temperature unit, concentration unit, stability criteria, date and time, etc.
*Reset function automatically resumes all settings back to the factory defaults.
*Expanded memory stores or recalls up to 500 data sets.
*USB communication interface for data transfer or connecting a power adapter to meter.
79-80 PH820-821Portable Dissolved Oxygen Meter.pdf
