High quality underground metal detector, long range metal detectors metal detector Non-Ferrous finder

High quality  underground metal detector, long range metal detectors metal detector Non-Ferrous finder   Product Description Features: Cover is produced with high-strength ABS plastic, high strength, light weight, long lift Distinguish ferrous and non ferrous metal Ground Balance, to eliminate"mineralization reaction" impact, and improve detecting deep depth and accuracy Low power indicator, under voltage alarm Rechargeable Identified metal through the sound of speakers or headphones     Technical Specification: Operation Mode: Ground Balance/Discrimination Transmission Frequency: 6.99±0.2Khz Audio Frequency: 450±10Hz Power about 2.5W Power Supply: 8pcs of 1.5V batteries/rechargeable batteries(optional),available external power: DC12V Accessories: charger, headphones, big/small coils Coils  Size: big coil (diameter 390mm)                      small coil (diameter 300mm) Detect Security: big coil:40-45cm (1coin size as CNY ¥1)                             small coil: 25-30cm (1coin size as CNY ¥1)  Maximum Detecting depth:  big coil: 3.5meters;   small coil: 2meters   Note: Maximum detecting  depth is tested by one piece of 60Lx60Wx1H cm aluminum board buried in dry soil. Generally the more large surface area of detecting target and more detecting targets, the more deep detecting depth.       Function show        
  Our Services   Advantage:                                                                                                                         1.Good quality with competitive price 2.Professional technique supports and great services 3.Fast delivery and safe shipping way    Payment terms:                                                                                                                  T/T,Western Union, Paypal    Shipping way                                                                                                                     Fast way: by Express courier, such as DHL,FedEx,UPS,TNT,EMS etc.,     Feedback quickly:                                                                                                               Any inquires will be replied within 24 hours;  We can provide online supports for you when need helps on testing.    Warranty:                                                                                                                              1-2 years warranty from the date of delivery.A lifetime technical support.   We warmly welcome you will join us,make Win-Win cooperation.     Related item   you can click the following picture to visit our other metal detector link