The Stanley 0-77-030 Moisture Meter features an LCD display with bar graph   The Stanley 0-77-030 is a versatile Moisture Meter useful for taking readings from various building materials. Comes with a pouch.  Features:   Measures moisture in wood from 6-44%  Dual measurement scale, LCD display with bar graph  Measures moisture in other building materials from 0.2-2%   Gives % moisture reading based on electrical resistance across two pins  Specification:  Backlight: Green  Minimum operating temperature: 0°c  Maximum operating temperature: 50°c