Yes, our Oxygen sensor can be used to measure in air and water.
It is important to know that the achievement of equilibrium between the coating and its environment is determined by diffusion.
The sensor takes an average of 15 minutes to provide a reliable oxygen measurement of dissolved oxygen if there is no stirring or no flow.
In contrast, the oxygen coating is in equilibrium with the environment in a matter of seconds if you want to know oxygen levels in the air.
In short, oxygen exchange in water is 10,000 times more slowly than in air.