Orion Star™ A123 Dissolved Oxygen Portable Meter (Thermo Scientific™)

Take simple, routine dissolved oxygen and temperature measurements with the Thermo Scientific™ Orion Star™ A123 Dissolved Oxygen Portable Meter. This instrument is easy-to-use and budget-friendly, designed for basic dissolved oxygen analysis in the field. Calibrate polarographic DO probes using water-saturated air or custom value using Winkler titration. Quickly navigate setup menus and ensure consistent calibrations using the simple keypad layout and on-screen text prompts. Use the included electrode stand to easily place sensors in samples and simplify storage.

Key Features

Thermo Scientific Orion Star A123 dissolved oxygen portable meters are a simple, economical solution for your routine outdoor sample analysis. Featuring an emphasized measure key, selectable read modes and measurement stability indicator, our basic Orion Star A123 dissolved oxygen meters are designed to deliver measurements you can trust at an affordable price.

Measure dissolved oxygen in percent saturation or mg/L with temperature using polarographic DO probes
Calibrate using water-saturated air or custom value (Winkler titration)
Automatically compensate DO readings using ATC temperature, manual salinity input and manual barometric pressure
Simplified, easy-to-read display shows main measurement with temperature, stability indicator and electrode condition icon
User-friendly operation with basic calibration text prompts
Easily recall calibration data for procedure checks
Non-volatile memory preserves 50 point internal data log and meter settings, even with loss of power
Flexible power options with AA batteries or optional universal power adapter
IP67-rated housing is waterproof for rugged field operation
Meter kits include hard-sided field case and protective meter armor with electrode holders, adjustable wrist/belt strap and built-in meter stand
Meters offer CE, TUV 3-in-1 and FCC Class A certifications and 3-year replacement warranty

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Order Codes

Code	Description
STARA1230	Catalog Number: STARA1230 Unit Size: Each Description: Orion Star A123 dissolved oxygen portable meter Includes: Star A123 DO meter, 4 AA batteries, literature CD, printed quick start guide and meter test certificate
STARA1235	Catalog Number: STARA1235 Unit Size: Each Description: Orion Star A123 dissolved oxygen portable meter kit with polarographic DO sensor, maintenance kit, meter armor and field case Includes: Star 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
STARA1236	Catalog Number: STARA1236 Unit Size: Each Description: Orion Star A123 dissolved oxygen portable meter kit with polarographic DO sensor (3 meter cable), maintenance kit, meter armor and field case Includes: Star A123 DO meter, 083010MD Orion polarographic dissolved oxygen sensor with 3 meter cable, 080513 DO maintenance kit, protective meter armor, hard-sided field case, 4 AA batteries, literature CD, printed quick start guide and meter test certificate