Digital Wood Moisture Meter Electromagnetic Damp Meter No-contact Inductive Wood Humidity Tester Timber Damp Detector Hygrometer Features: & 9679;This mositure detector with four measurement modes: Drywall pattern, masonry pattern, softwood pattern, hardwood pattern, this tool also can be used for other materials. & 9679;Adopt VA full vewing angle reverse display screen, you can read the data more clearly, also easy for you to operate. & 9679;Adopt electromagnetic w-ave sensors, it is suitable to measure the object which thickness is greater than 20mm, and the area of the object need be greater than 40*40mm. & 9679;& 8451; and & 8457; units conversion function, you can change the units quickly for your different needs. & 9679;Ambient temerature and humidity detection function: With the temperature and humidity sensors to detect the ambient temperature and humidity for you. & 9679;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. WM700A PINLESS Moisture Meter Measuring Range: 1.Softwood: 0%~55% 2.Hardwood: 0%~35% 3.The humidity readings of drywall and masonry are relative values 4.Precision:Softwood, hardwood, +4% 5.Detection thickness:4/3 inch (20mm) 4~80% Density electromanetic Automatic shut- -down:10 minutes VA reverse display color screen:Yes Battery: 1.