Handheld Gas Dew Point Meter Runlai DPH300 High Accuracy Trace Water Analyzer Micro Water Tester with Robust Metal Housing, Customizable Detector for Industrial Gas Dew Point Measurement The RL-DPH300 handheld dew point meter is an intelligent analyzer powered by a microprocessor. It uses a thin-film capacitive measurement principle to accurately measure the moisture content in mixed gases. The device is compact and easy to carry, featuring a clear color screen and a user