Orion Star™ A223 Dissolved Oxygen Portable Meter, Thermo Fisher Scientific (CAT#: STEM-LE-1835-LC)

The durable and reliable Thermo Scientific™ Orion Star™ A223 Dissolved Oxygen Portable Meter makes the necessary tests easier.

DO Measuring Range:0 to 90 mg/L; 0 to 600 % saturation
Measurement Mode(s):Polarographic DO, RDO, Temperature
Measurement Resolution:0.01, 0.1 mg/L; 0.1, 1 % saturation, 0.1 °C

The meter accepts and automatically recognizes Orion polarography and RDO optical/luminescent probes
Automatic temperature, manual salinity and automatic/manual atmospheric pressure compensation can easily obtain accurate results
Calibration using water saturated air, air saturated water, Winkler titration or zero point calibration
Housing with IP67 protection grade, perfectly portable, waterproof and protected
Three-year instrument replacement warranty
Includes simple language screen prompts, easy-to-select soft keys, and a multilingual interface that supports English, Spanish, French, Italian, German, and Chinese
Thermo Scientific™ AUTO-READ™ locks the stable reading on the screen and displays the ready indicator alert when the reading is stable
LCD display shows dissolved oxygen saturation or concentration percentage, as well as temperature and electrode status, time, date and calibration point
Non-volatile memory can store up to 1000 data points with time and date stamp
Easily transfer data and keep the instrument software up to date through USB and RS232 ports and free data analysis software
Four AA batteries (included) provide more than 800 hours of runtime
Available universal power adapter (sold separately) to use AC power

Orion Star™ A123 Dissolved Oxygen Portable Meter, Orion Star™ A323 Dissolved Oxygen Portable Meter, Orion Star™ A326 pH/Dissolved Oxygen Portable Multiparameter Meter, Orion Star™ A329 pH ISE Conductivity Dissolved Oxygen Portable Multiparameter Meter