The complete meter package! The MMS Plus system combines three different meter functions into one convenient unit, plus it serves as a data logger. Its a revolutionary tool, one thats ideal for the restorer that wants to update to an all-in-one system. Moisture meter for wood and wood floors, drywall, concrete and concrete block, stucco, plaster, masonry, and other building materials. Hygrometer mode measures relative humidity, ambient temperature, dew point and grains per pound with either a replaceable Hygrostick or QuickStick probe. Pin measure mode determines moisture content of wood and Wood Moisture Equivalent (WME) in other building materials. Pinless measure mode uses radio frequency to detect moisture non-invasively. Diagnose the extent of moisture intrusion for damage assessment and monitor drying out of building structures. Use deep wall pin-type probes to measure moisture in walls, wall cavity insulation, sub and surface structures.