Benchtop Dissolved Oxygen Meter

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. *Setup menu allows setting the number of calibration points, concentration unit, temperature unit, etc. *Reset function automatically resumes all settings back to the factory defaults. *Calibration due alarm prompts user to calibrate the meter regularly.(only PH-980) *Set up menu allows setting the number of calibration points,resolution.stability criteria, temperature unit, concentration unit, date and time, etc,(only PH-980) *Expanded memory stores or recalls up to 500 data sets.(only PH-980)SD *USB communication interface for data transfer and timed interval readings.(only PH-980) Accessories: DO100 dissolved oxygen electrode, electrolyte solution, membrane cap and DC9V power adapter.