Center-find technology to easily find the center of the studDetection depth of 3/4 in. for wood and metalAC and live wire detection for added safetyConstant auto-calibration to save time during useCenter marking channel for added convenience. Slim profile for easy use and storageAudible alert for clear notification of stud locationDirectional LED arrows for visual guidance to stud locationPLEASE NOTE: The stud sensor will not detect objects in concrete, mortar, block, brick work, plaster, carpeting, foil- faced materials, metallic surfaces, or ceramic tileThe stud sensor is not designed to locate non-ferrous or plastic objects, such as pipes
