STARA223 RDO/Dissolved Oxygen Portable Meter.
SKU’s: STARA2230 and STARA2235

The Thermo Scientific Orion Star A223 is a premium portable dissolved oxygen meter for taking advanced measurements on location. A large backlit LCD display shows dissolved oxygen in percent saturation or concentration, and temperature, as well as status information. Optical sensor can be calibrated using air-saturated water or water-saturated air, custom value via Winkler titration, or zero-point. Perform data transfers and meter software updates via USB and RS232 ports using the included Orion Star software.