<br><b>Specifications:</b><br>Product name: Preciva wall scanner stud finder<br>Color: Purple<br>Material: ABS<br><br><b>Maximum Detection Depth:</b><br>Stud: 3/4 in (19mm)<br>Deep: 11/(2) in (38mm)<br>Metal: 21/(4) in (60mm)<br>AC wire: 2 in (51mm)<br><br><b>Package list:</b><br>1x Stud scanner<br>1x 9V battery<br>1x User manual<br><br><b>How to use it?</b><br>◆There are two buttons on the stud finder. One is on the left side of the scanner and the other one is on the middle body of the device.<br>◆Put the 9V battery into the device<br>◆Long press the left button to open it, and loose your finger to turn off it.<br>◆Choose the modes you want to use by using the middle body button.<br>◆It is easy to operate and quickly find what you want to detect.<br><br><b>Notice:</b><br>◆ Hold the stud detector correctly and slowly move in one direction for the best scan results.<br>◆Avoid placing the other hand or any other part of the body on the surface being scanned, which can interfere with the performance of the scanner.<br>◆ Make sure the surface you are scanning is flat and completely dry.<br>◆ Be careful when working near the wires and always turn off the power.