Magnetic locator GA-52CX - Enhanced target definition - Unsurpassed detection range - Piezoelectric speaker - Clear, sharp, detection signal pinpoints the target - Five individual sensitivity settings - Ignores aluminum, brass and copper - Ease of operation reduces search time – An experienced user can distinguish between small pieces of scrap iron and actual targets - 40-hour operation (intermittent usage) on two 9-volt batteries - Modular construction - High performance components - Weights approximately 2 1/2 lbs - Weather protected controls - Rugged lightweight case - Patented HeliFlux® sensors