This powerful non-destructive induction moisture meter can detect the moisture of wood for you, you can use it to test the wood in your home, and it also works for drywall and masonry wall detect, come on and have a try, it will not let you down. Features:This mositure detector with four measurement modes:Drywall pattern, masonry pattern, softwood pattern, hardwood pattern, this tool also can be used for other materials. Adopt VA full vewing angle reverse display screen, you can read the data more clearly, also easy for you to operate. Adopt electromagnetic w-ave sensors, it is suitable to measure the object which thickne is greater than 20mm, and the area of the object need be greater than 40*40mm. and units conversion function, you can change the units quickly for your different needs. Ambient temerature and humidity detection function:With the temperature and humidity sensors to detect the ambient temperature and humidity for you. Over-range alarm function:When the detect value of dry walll and masonry > 70% , and when the detect value of softwood and hardwood>17% , the b-uzzer will warning. Specifications:Material:ABS Measuring Ranges:Softwood:0%~55% Hardwood:0%~35% The humidity readings of drywall and masonry are relative values Power:3 * AAA battery (NOT included) Detection thickne:20mm Automatic shut-down:10 minutes Working current:35mA Operating temperature:0~40 Working humidity:0~70% Storage environment:-10~50 (5%95%RH) Item size:132 * 73 * 33mm / 5.2 * 2.9 * 1.3in Item weight:150g / 5.3ounce Package size:160 * 90 * 50mm / 6.3 * 3.5 * 2.0in Package weight:200g / 7.1ounce Packing list:1 * Wood Moisture Meter