The Delmhorst TCHECK/S1/WD/PKG TotalCheck 3-in-1 Digital Moisture Meter Wood Package features a fast-acting, accurate, 3-in-1 thermo-hygrometer. Its removable RH sensor measures ambient temperature and relative humidity, while calculating dew point and GPP. High levels of ambient humidity can be a warning sign at inspection jobs. RH is also a major concern when testing a concrete sub-floor. To address this concern, TotalCheck is designed to conform to the ASTM F-2170 standard to determine RH in a concrete slab using in-situ probes. Using TotalCheck to follow the ASTM F-2170 will provide useful information to minimize moisture-related flooring problems and failures.