Enter to win a ProSolo Optical DO/BOD System from YSI!


Optical, luminescent dissolved oxygen technology eliminates membrane changes, warm up time, flow dependence and interferences. It also greatly reduces maintenance while providing stable, accurate readings. YSI offers optical dissolved oxygen solutions for the lab and field with the ProSolo.

Simply fill out the form to enter*. Drawings will be held in July and December. Entries eligible for all drawings. No need to enter twice.

Congratulations to our winner for December 2018:

Rebecca Olson – Sawmill Creek Hatchery in Sitka, AK

Winners will receive the following:

  • ProSolo instrument
  • Choice of cable:
    • 4 meter ODO/T field cable assembly with built-in optical DO and temperature sensors; carrying case included
    • ProOBOD self-stirring optical BOD probe for the lab; lab dock and power supply included


* No Purchase Necessary. Winner may be asked to provide additional information to YSI on their application and/or be asked to take part in an application story. A winner will be drawn and notified after each drawing. No need to enter twice.