Our C555 is very effective in assessing the dryness in the top ½ inch of smooth concrete slabs. It is an easy, quick, and useful first step that you can take when evaluating a concrete slab that will be receiving some type of flooring finish. “Goodbye” to the days of confusion, waste, or extra work, and “hello” to the days of saving effort, time, and money. When you’re assessing your concrete, you want an easy and nondestructive tool that will set you up for success. The C555 does exactly that. Not only is it easy to use, but it’s the only concrete moisture meter in the market that allows for in-field calibration. This makes it easier to meet the calibration requirements of ASTM F2659. It also has built-in temperature and relative humidity sensors!