General Tools MMD8P Precision Multi-Species Wood Moisture Meter The new Wood Moisture Meter from General Tools features an industry first 1.54" yellow OLED dot matrix display Select and measure moisture content of 48 species of timber and wood Includes user pre-settable selections with auto power off, buzzer sound, and 99 stored memory and recall First moisture meter with super bright and sharp OLED dot matrix display Incorporates 48 industry-standard moisture-resistance curves Also measures and displays ambient temperature (in Fahrenheit or Celsius) and relative humidity (RH) Measurements can be compensated for ambient temperature, improving precision Features 99 record memory with manual or automatic (time-based) recording