Ambient temerature and humidity detection function: With the temperature and humidity sensors to detect the ambient temperature and humidity for you. 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. This mositure detector with four measurement modes: Drywall pattern, masonry pattern, softwood pattern, hardwood pattern, this tool also can be used for other materials. 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. Adopt VA full vewing angle reverse display screen, you can read the data more clearly, also easy for you to operate., Manufacturer: CFWWSAQ