Applications Before installing resilient floor coverings, the moisture in concrete slabs should be tested to avoid floor covering failure. The floor covering industry recommends the RH in-situ probe method for concrete moisture testing. Advantages TheLigno-Tec RH meter is the right choice for you, if you have all the moisture meters you need or if you are a concrete contractor, who never needs to measure any wood. The Ligno-Tec delivers absolute reliability for many years of usage. It is your best choice for a RH-only meter. The Package RH-KS includes the Ligno-tec RH and basic necessities for RH concrete moisture testing. The Lignomat RH system complies to the latest ASTM standard. We are committed to up-dating our equipment if needed to any changes suggested by ASTM F2170.