best gold detector in the world

{"cid":"91178329","title":"Black Hawk Pulse OKM 3d Gold Metal Detector , 3d Gold Scanner Detector","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/dc\/1a\/47ac37291d5e729f9230c4b023c9-200x200-1.jpg","attrs":{"Price":"negotiation","Brand Name":"SECUERA","Model Number":"GR100","Minimum Order Quantity":"1 set","Delivery Time":"1-5 days after payment","Certification":"CE,FCC,ROHS,ISO","Place of Origin":"China","Payment Terms":"L\/C, D\/A, D\/P, T\/T, Western Union, MoneyGram,Paypal","Supply Ability":"100 pcs per month","Packaging Details":"carton box","Application":"3d gold metal detector","Detecting Target":"gold -silver - gem(ruby-sapphi","Detecting Depth":"30 meters","Feature":"Digital laser detector","Detecting Range":"1000 meters","Warranty":"24 months"}}