Oxygen Tester Tutorial

This tuto­r­i­al illus­trates how to use the oxy­gen tester. The oxy­gen tester mea­sures the per­cent­age of oxy­gen in the air.

• Unpack the tester
• Cal­i­brate the tester to 21%
• Mea­sure oxy­gen con­cen­tra­tion from +O2 compartment
• Mea­sure oxy­gen con­cen­tra­tion from ‑O2 compartment