Thermo Scientific™

Orion Star™ A113 Dissolved Oxygen Benchtop Meter

Take simple, routine dissolved oxygen and temperature measurements with the Thermo Scientific™ Orion Star™ A113 Dissolved Oxygen Benchtop Meter. This instrument is easy-to-use and budget-friendly, designed for basic dissolved oxygen analysis in the lab. 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.

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Features and Benefits

  • Automatic temperature, manual salinity input and manual barometric pressure compensation for an accurate result
  • Two calibration options to meet your requirements: water-saturated air method or a Winkler titration
  • Non-volatile memory holds up to 50 data points
  • IP54-rated housing handles splashes and can be wall-mounted if table space is unavailable
  • Accepts Thermo Scientific™ Orion™ polarographic dissolved oxygen probes
  • 3-year meter replacement warranty

Multiple Power Options

  • Universal power adapter that works with almost every AC power source
  • Alternative power source of four AA batteries (sold separately)

Easy-to-Read Backlit Display

  • Large, informative screen clearly shows the main information, including DO reading in mg/L or % saturation, temperature, meter mode and power source
  • Thermo Scientific™ AUTO-READ™ locks in the stable reading on your screen and ready indicator alerts when readings are stable, so you don't miss a reading
  • Simple button layout and onscreen messages help with calibration and setup menu choices
  • Icons provide quick updates on battery life and completed calibration status

Disclaimer to internal research use restriction: Any restrictions on the purchaser to utilize the product(s) for internal research purposes only does not apply to the product(s) on the web pages associated with this statement.