GPX- 4500 - Top Features at a Glance: SETA (Smart Electronic Timing Alignment) - Provides less interference, quieter operation and a more stable threshold. Two more timing options added to the original four on the GPX-4000 - "Enhance" and "Sharp." New custom modes. Ground Balance "Off" feature. Improved discrimination ability. Volume limit feature with a range of 1 to 20 New backlit control box with time-out feature to conserve battery power. Updated "Iron Reject" adjustments. New adjustable "Stabilizer" from 1-20 for smoother threshold. Improved battery harness for a more comfortable fit. Re-designed Lithium-Ion battery pack with an audio amplifier which will boost target signals and help you hear the deeper Gold nuggets more easily.. Modified end-caps to improve adjustability and balance when using different size coils. Improved, stronger power cable 联系方式 Co:NA Add:United Arab Emirates Tel:971-553-476202 Email:abosujad@hotmail.com 联系人：Mr. MOHAMMED ELMAHI国家：United Arab Emirates产品类别机械五金abosujad@hotmail.com
