Specifications
AC AdapterUniversal 50-60 Hz, 100-240 VAC power adapter (sold separately, Cat. No. 1010003)
Accuracy (Polarographic DO)±0.2mg/L or ±2% of reading, whichever is greater
Accuracy (Temperature)±0.1°C
Barometric Pressure Correction450 to 850mmHg, automatic with manual entry
Battery Life2000 hours
Battery TypeFour AA (included)
Calibration ModesWater-saturated air, manual (Winkler titration)
Certifications/ComplianceCE, TUV 3-1, FCC Class A
Channels1
Data Management DetailsInternal data point memory
Data Points50
DescriptionOrion Star A123 dissolved oxygen portable meter kit with polarographic DO sensor, maintenance kit, meter armor and field case
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 TypeLCD
IncludesStar A123 DO meter, 083005MD Orion polarographic dissolved oxygen sensor, 080513 DO maintenance kit, protective meter armor, hard-sided field case, 4 AA batteries, literature CD, printed quick start guide and meter test certificate
Inputs9 pin MiniDIN (polarographic DO sensor with built-in temperature)
KeypadSimple with highlighted measure key, scroll and shortcut keys
LanguagesEnglish
Log Function TypeAutomatic with Auto-Read Measure Mode, Manual with Continuous Measure Mode
MemoryNon-volatile memory preserves log and settings
ModelOrion Star A123 Dissolved Oxygen/Temperature Portable Meter
OutputsNone
Percent Saturation Range (Polarographic DO)0.0 to 200.0 % saturation
Percent Saturation Resolution (Polarographic DO)0.1, 1 % saturation
Percent Saturation Relative Accuracy (Polarographic DO)±2 % saturation or ±2% of reading whichever is greater
Power Supply4 AA batteries (included) or universal AC adapter (sold separately)
Pressure Range450 to 850mmHg (manual entry)
Probe TypeDO Sensor
Resolution (Polarographic DO)0.01, 0.1mg/L
Resolution (Temperature)0.1°C (0.1°F)
Salinity Factor0 to 45 ppt, automatic correction using manual entry of sample salinity
StabilitySmart Stability and Smart Averaging
Temperature (English) Operating41°F to 113°F (ambient)
Temperature (Metric) Operating5°C to 45°C (ambient)
Temperature Probe Calibration1 point temperature offset calibration
Temperature SelectionAutomatic with ATC temperature probe
TypeDO Meter with Maintenance Kit
Warranty3 Year Meter Warranty
Weight (English)2 lb.
Weight (Metric)0.5 kg
IP RatingIP-67
Measurement ModesDissolved Oxygen (% Saturation), Dissolved Oxygen (mg/L with Temperature)
Percent Saturation Range Polarographic DO0.0 to 200.0 % saturation
Range (Polarographic DO)0.00 to 20.00 mg/L
Relative Humidity Range5 to 85 %, non-condensing
Sensor TypesPolarographic Dissolved Oxygen Sensor
Temperature (Metric) Range0.0°C to 50.0°C
Unit SizeEach