With a stud finder, you have a fast, easy accurate stud detector you can rely on. To operate the Basic, place the unit firmly against the wall, then press and hold the button. The LEDs will quickly illuminate indicating it is ready for stud finding! When you move the unit back and forth, the LEDs will illuminate in sequence until the top LED turns green - pinpointing the center of the stud. stud finders are the most accurate stud locators because they have more sensors. Other stud finders typically have only 1 or 2 sensors. The Basic has 3. With 's patented technology, you can find stud centers with unbeatable accuracy. To prevent false readings, always place the unit on the wall before pressing the button. As you scan, ensure the unit never lifts but is continuously pressed against the wall. The Basic is the perfect tool for many projects ranging from hanging pictures to mounting curtains and hanging shelves. Once you try the Basic, stud finders will quickly become your favorite. AAA Battery powered (not included).ACCURATE: More sensors = More accuracy. Conventional electronic stud finders have 1 or 2 sensors. The Basic has 3, making it a highly accurate stud locator., DETECTS WOOD AND METAL STUDS: The Basic stud detector identifies any change in density-wood or metal-no extra buttons required.STUD CENTER FINDER: The LED display will turn green, pinpointing the exact center of the stud.,1.0" DEEP SCAN ALWAYS ON: One mode finds it all! The Basic adjusts for a variety of depths for stud finding through sheetrock/drywall and more.EASY: To calibrate, simply place the unit firmly against the wall, press and hold the button and go. You can even start over a stud.DURABLE: designed for all users from homeowners to DIY enthusiasts, the Basic stud finder is accurate and durable.,We believe that high-quality products make high-quality projects, and we strive for excellence from beginning to end of our production process.AAA BATTERY POWERED: Requires two AAA batteries (not included).