Thermo Scientific Orion Star™ A223 Portable Dissolved Oxygen Meter

Orion Star™ A223 Portable Dissolved Oxygen Meter Reliably measure dissolved oxygen (optical/polarographic) and temperature with the Thermo Scientific™ Orion™ Star A223 Portable RDO/DO Meter for advanced outdoor analysis Power supply: Universal 50-60 Hz, 100-240 VAC power adapter (sold separately, Cat. No. 1010003) Accuracy (barometer): ±6mmHg Accuracy (DO, polarographic): ± 0.2 mg/l or ± 2% of reading (whichever is greater) Accuracy (RDO): ± 0.1 mg/l up to 8 mg/l, ± 0.2 mg/l from 8 to 20 mg/l, ± 10% of reading up to 50 mg/l Accuracy (temperature): ±0.1°C Alarm output: Calibration due alarm (fixed 12 hour) Backlight option: Yes, selectable Battery life: 800 hours Battery type: Four AA (included) Calibration modes: Water saturated air, air saturated water, manual (Winkler titration), zero point Certification/Compliance: CE, TUV 3-1, FCC Class A Channels: 1 Data management specifications: transfer individual data points, multiple data points in a specified range, or all data points to a printer or computer Data points: 1000 readings with date and time Description: Orion Star A223 RDO/DO portable meter Dimensions (L x W x H): 24 cm x 10 cm x 6.5 cm (9.5 in. x 3.9 in. x 2.6 in.) Display Type: graphic LCD display with backlight Includes: Star A223 RDO/DO meter, 4 AA batteries, literature CD, printed quick start guide, computer interface cable and meter test certificate Inputs: 9 pin MiniDIN (RDO optical or polarographic DO sensor with built-in temperature) Keypad: Comprehensive with menu-specific function keys and dual purpose scroll/shortcut keys Languages: English, Spanish, French, Italian, German and Chinese, Portuguese and Korean available via software update Logging function type: Automatic data logging in auto-read measurement mode and manual data logging in continuous measurement mode Main memory: Non-volatile memory preserves data log, calibration log and meter settings Procedure: 10 per channel with password protection Percent Saturation Range (Polarographic DO): 0.0 to 600.0 % saturation Percent Saturation Relative Accuracy (RDO): ±2 % saturation ≤ 200 % saturation, ±10 % saturation > 200 % saturation Percent Saturation Resolution (Polarographic DO): 0.1, 1 % saturation Saturation Range (RDO) in %: 0.0 to 500.0 % saturation Percent Saturation Relative Accuracy (DO, Polarographic): ±2 % saturation or ±2% of reading whichever is greater Resolution of saturation in % (RDO): 0.1, 1 % saturation Power supply: 4 AA batteries (included) or universal AC adapter (sold separately) Pressure range: 400 to 850mmHg Pressure resolution: 1mmHg Probe type: RDO optical dissolved oxygen probe, polarographic dissolved oxygen probe (purchase separately) Resolution (DO, polarographic): 0.01, 0.1mg/L Resolution (RDO): 0.01, 0.1mg/L Resolution (temperature): 0.1 °C (0.1 °F) Salinity factor: 0.0 to 45.0 ppt, automatic correction using manual entry of sample salinity Stability: Smart Stability and Smart Averaging Operating temperature (Anglo-American): 41 °F to 113 °F (ambient) Operating temperature (metric): 5 °C to 45 °C (ambient) Temperature probe calibration: 1 point temperature offset calibration Temperature selection: Automatic with ATC temperature probe Warranty: 3 year meter warranty Weight (Anglo-American): 1.2 lb. Barometric Pressure Correction: 400 to 850 mmHg, automatic use of built-in barometer or manual entry IP Rating: IP-67 Measurement Modes: Dissolved Oxygen % Saturation or mg/L with Temperature and Barometric Pressure Outputs: USB, RS232 Percent Saturation Range Polarographic DO: 0.0 to 600.0 % Saturation Range (DO, polarographic): 0.00 to 90.00mg/L Range (RDO): 0.00 to 50.00mg/L Relative Humidity Range: 5 to 85%, non-condensing Types of Sensors: RDO optical dissolved oxygen sensor or polarographic dissolved oxygen sensor Temperature Range (metric): 0.0 °C° to 50.0 °C° Unit Size: Each