Extech products are high-quality handheld test, measurement and inspection tools. These are tools that help prevent, identify and solve problems, whether it's electrical, mechanical or maintenance. Rugged handheld testers, gauges and thermometers are put to the test every day by professionals, tradesmen and DIY enthusiasts. Extech is the pursuit of excellence in technology. The MO55 is a moisture measuring device for non-contact or invasive measurement. Get a quick result of measuring the moisture content of wood or building materials, with a simple method of non-contact (non-intrusive) measurement. Simple operation with an icon display that allows you to determine the level of humidity and has an acoustic alarm function. Ideal for construction, renovation projects and applications where moisture detection on floors, tiles and carpets is critical. An indispensable tool for analyzing the effects of water leaks on walls and ceilings. Complete with two tips, a cover and a 9V battery. Specification - Quick measurements of the moisture content of wood and building materials - Combines two measurement methods - Precise puncture measurement - Quick non-invasive measurement - Indicates moisture in wood and building materials such as sheet metal, cardboard, plaster, concrete and mortar - Moisture measurement depth up to 25 mm - Sound alarm - sound frequency increases with increasing humidity - Icons indicate low, medium and high moisture content Technical data - Wood range; 5 to 50% - Building materials range: 1.5 to 33% - Non-contact measurement range: 0 to 99% - Dimensions: 31 x 171 x 67mm - Weight: 123g - Calibration: factory (without certificate) - Type of measurement: invasive - Accuracy of measuring the humidity of building materials: 3% - Accuracy of wood moisture measurement: 3% - Power source: 9V block battery (1x) - Product type: material moisture meter Kit includes - Moisture meter for materials Extech MO55 invasive - Cover and 9V battery - Spare measuring tips