6 zones high sensitivity archway door frame metal detector,discount price,bulk,low,china,manufacture

Product Name: 6 zones high sensitivity walk through metal detector with LCD display and 300 levels adjustable sensitivity Highlight features: 1. Higher frequecy detection gate, anti-interference ability higher 2. Higher sensitivity : 300 levels adjustable 3. Higher accuracy : can detect 0.4g metal max. 4. High strength material with aluminum alloy cover. More details,pls check product brochure.