Reads multiple depths of both wood and metal (1/2", 1", 1-1/2") for outstanding versatility Multimode LED panel ensures accurate depth indication Continuous live wire detection for safety New, quick-response ASIC technology improves reliability Large LCD screen with patented graphics offers accurate visual detection Audible sound feature when locating studs High-impact ABS case built for strength and durability Soft-touch felt strips protect surfaces Requires 9-volt battery (not included)