The patented Rapid RH™ is the fastest concrete relative humidity test method.  This accurate technology allows you to conduct your moisture testing 10 times faster than with other test methods.  The Rapid RH™ is easy to install and fits level with the testing area. There is no ongoing calibration required.  Website: www.rapidrh.com,  Email: sales@wagnermeters.com, Phone: (800)581-3068