Portable Dew Point Meter is designed to measure the performance of drying systems for compressed air, nitrogen, transformer, and other compressed gases. This Portable Dew Point Meter Model is ideal for monitoring medical, commercial, and industrial applications including plastics resin dryers, breathing air, pneumatic tools, instrument air, and spraying/coating applications. You can use this Dew Point analyzer continuously for up to 90 hours without low battery indication.