The TQC Sheen Concrete Moisture Meter (SKU LI9200) is a non-destructive electronic moisture meter for concrete, cement screed, anhydrite screed and gypsum. Eight measurement scales let one hand tool cover multiple substrate types - concrete percentage moisture, cement and anhydrite screed with both direct and Carbide Method equivalent readings, caisson, relative and gypsum - so floor coating applicators, flooring installers, building surveyors and restoration professionals can verify moisture content before painting, laying floor coverings, or diagnosing damp. Press the meter against the surface for a reading in seconds. Portable, battery-powered, and accurate to plus or minus 0.5 percent.