Hydophobic Filters Used on Diffusion Data Loggers

This application note explains the gas permeable, hydrophobic (water repelling) filters covering the air vents in our 1% and 30% CO2, %RH and Temperature diffusion data loggers model numbers CM‐0016, CM‐0017, CM‐0018, CM‐0019. It allows gas to pass through the filter, but not H20 molecules.

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