AKS Remote Underground Metal Detector Range Archaeological Location Detector Product Main Features: 1. The strongest product core, intelligent modular operation 2.Powerful+Convenient+Efficient+Speed 3Easy to use and quick to get started, advanced and efficient...Detection Depth Maximum detection depth: about 12 meters. This instrument can detect at least 3.5 meters for a 5cm*5cm object, 5-8 meters for a 30cm*30cm object, and 12 meters if the size of the object is buried for a long time. If the area of the object is larger, the depth of detection will be deepened. Function: It can locate objects by accurately determining where they are buried It can also rely on the frequency regulator to recognize the specific type of metal. Search system:Microcomputer processor control and reflective conductivity Search range:800 meters Detection depth:12 meters Energy:12V 1600mAh Transmit frequency:5.6-6KHz Signal Frequency:360-440Hz Weight:3.2KG Detection type:Gold,Silver,Copper,Gemstone Charging method:This instrument has installed rechargeable battery, directly connect to the charger, you can charge, charging time is 10-12 hours.