Minelab field test results, in both low and high mineralized ground, using a range of natural gold nuggets, give an average of 30% detection depth increase when measuring performance of the extra large GPZ 19 coil compared to the standard GPZ 14 inch coil. Excellent reports out of Australia on various sizes of gold at much greater depths. Working my way back up a creek, I found many ounces of weighty gold at incredible depths that had been totally ignored by a GPX with a 20-inch Monoloop.I also missed these using the GPZ 14 inch coil they were just too deep. THe GPZ 19 is deceptively stable and quiet I recovered a 15 ounce nugget, really deep! Deeper Detection Depth (average up to 30% more). More Ground Coverage Per Swing over stock 14×13 inch. Waterproof to 3 foot or 1m. Only can be used on the Minelab GPZ 7000 Metal Detector. Rob's Detector Sales Surprise, Arizona.
The item "Used Minelab GPZ 19-inch Super DD Searchcoil for Minelab GPZ 7000 Metal Detector" is in sale since Sunday, April 23, 2017. This item is in the category "Business & Industrial\Test, Measurement & Inspection\Test Meters & Detectors\Metal Detector Accessories".The seller is "robsdetectorsales" and is located in Surprise, Arizona. This item can be shipped to United States.