• Center-find technology to easily find the center of the stud
• Detection depth of 1-1/2 in. for wood and metal
• AC and live wire detection for added safety
• Constant auto-calibration to save time during use
• Center marking channel for added convenience
• Slim profile for easy use and storage
• Audible alert for clear notification of stud location
• Directional led arrows for visual guidance to stud location
• AAA batteries included