C555 Handheld Concrete Moisture Meter – Learn How To Use

The C555 Concrete Moisture Meter locates pockets of unusually high or low moisture in a slab, which is how you decide where to place Rapid RH® L6 Smart Sensors. This video shows how to use it on the job.

The C555 complies with ASTM F2659 for preliminary evaluation of the comparative moisture condition of concrete, gypsum cement, and other floor slabs and screeds.

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Last updated on August 18th, 2026

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