The Vernier Optical DO Probe makes it easy to measure the dissolved oxygen concentration in water. Perfect for the field or for the laboratory, this plug-and-play probe requires no calibration, no filling solution, no warm-up time, and no stirring. Included are: Vernier Optical DO Probe Instruction Manual
**This item requires the use of a LabQuest computer interface which is also available for checkout. Click the checkout tab to check this item out.