【Upgrade Sensor Chip】 This stud finder is equipped with the latest upgrade sensor chip. It can sense the changes in density behind the wall and make an accurate location of keel centers and edges. Quick and accurate, saves lots of effort and time. 【Multifunctional Stud Finder】This stud finder features 5-in-1 design which is stronger, more efficient and durable. The stud finder has 5 detecting modes, measure the center of the wood stalk: 0.5in (12.7mm), 1in (25.4mm), 1.5in (38mm) deep. And metal scan mode up to 2.36in (60mm), AC mode about 2 inches deep. 【LED Display and Alarm Indication】 This stud finder is designed with a LED display with clear arrows in the direction of movement. Easy to know the detected information. And the alarm indication will sound when get closer to the target. 【Quick Locate and Efficient Detect】 This stud finder has an efficient detection which can locate wooden, metal, studs and AC easily and quickly. And the location is accurate. It can clearly identify the