White's MXT Max 15 Search Coil (15 kHz). Specifically for use with MXT, MXT Pro, DFX. Designed for larger metal items, relics, groups of coins, jar hunting, searching sand bars for large nuggets, etc. Three feet plus (depending upon target size and search mode) on larger masses of metal. Suggest 15 kHz single frequency when used with DFX.Not tuned for VX3 / V3i. Search areas where digging is not critical, and a quality shovel type digging tool recommended. The item "Whites 15 MXT Max Waterproof Search Coil 3-15 kHz MXT, MXT Pro, DFX 801-3245" is in sale since Wednesday, February 1, 2017. This item is in the category "Business & Industrial\Test, Measurement & Inspection\Test Meters & Detectors\Metal Detector Accessories". The seller is "mci_products" and is located in Sylvania, Ohio. This item can be shipped to United States.