The Phymetrix PPMa Portable Moisture Analyzer is a multifunctional, multi-purpose, and menu-driven handheld dew point meter & hygrometer. The advanced and user-friendly interface lets you observe continuous status and diagnostic displays with an on-screen histogram and trend graph. The PPMa's integrated orifice provides pressure regulation and the USB data interface also charges the battery. There is also an optional pressure sensor with automatic dew point correction.
Please consider these optional accessories.
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