... sensitivityEasy to handle and use BenefitsMD-300 metal detector is a mini-type hand held metal detector, mainly for security check in important places ... distances,1. 1/2 pin,10mm2. Model 64 pistol, 150mm3. 6" dagger, 150mm4. 8mm (diameter),40mm5. Aluminum & copper sheet,10mm6. DIP14 ... a big boxCarton Quantity: 20 pcsCarton Size: 53X32X38 cmGrouss Weight: 6 kg