The DataMaster™ app from Wagner Meters provides you with a seamless relative humidity data collection and reporting system for your Android device. Designed specifically for use with the Rapid RH® Bluetooth® Smart Reader and with Rapid RH® Smart Sensors for concrete moisture testing, the DataMaster™ app helps to ensure full ASTM F2170 compliance. Now even better than the original DataMaster™ tool that was awarded Most Innovative Products, Industry Choice, for Concrete Construction Equipment at W