MO230 has large dual graphical LCD displays moisture in wood and other building materials plus Air Temperature and Relative Humidity. Unique LCD with analog bargraph for simultaneous digital readout of moisture content plus ambient temperature or humidity with analog bargraph display of moisture, minimum/maximum moisture values, and programmable wet/dry indication. Use on wood, paper, wallboard, sheet rock, cardboard, plaster, concrete, and mortar. Memory contains 3 wood groups and four building material groups with calibrations for approximately 150 species of wood and 19 building material types