Garrett's Vortex VX9 Metal Detector is "The Professional's Model". The VX9 is submersible to 16 feet (fresh & saltwater) and offers a full three-tiered MD-MF Target ID display (including two ferrous scales to help identify unwanted iron trash). Includes multi-Salt & additional frequency choices. Additional Recovery Speed controls. FAST Mode for competition hunts and high-trash search areas. THIN COINS Mode for detecting fine, lower conductive coins such as hammered silver and thin gold coins. Multi-Dimensional Multi-Frequency (MD-MF) blends a variety of detection frequencies together for improved detection on targets of all types. Garrett's exclusive Multi-Dimensional Multi-Frequency (MD-MF) technology also analyzes the targets and surrounding soil matrix utilizing multiple dimensions of conductivity and ferrous content. The addition of this advanced multi-dimensional technology provides a more comprehensive analysis to formulate a more accurate Target ID, and at even greater depths in areas with increased ground minerals. This three-tiered system includes a non-ferrous Target ID scale and two different ferrous scales. The center scale indicates non-ferrous items. Low conductivity items such as thin, hammered coins will indicate toward the left side of the scale. High conductivity items, such as thick silver coins, will indicate toward the right side of this scale. The upper iron scale indicates flat ferrous items such as steel bottlecaps and washers. These flat-shaped ferrous items create complex signals that trick many detectors into thinking they are coins. Bottlecaps can appear simultaneously on the central conductive scale, as well as the upper complex ferrous scale. More common ferrous items such as nails or wire indicate on the lower ferrous scale. Vortex VX9 offers seven frequency options. Choose from five powerful single frequencies (5 kHz, 9 kHz, 13 kHz, 18 kHz, or 25 kHz) or search with one of two Vortex simultaneous Multi-Frequency options (the traditional Multi or Multi-Frequency Salt for saltwater beach use). Iron Audio allows the user to hear discriminated iron that are normally silenced, to avoid being tricked into digging iron "ghost signals" that appear to be good. It also adjusts the low iron-tone boundary to match the Iron Discrimination setting to audibly separate good targets from iron. Iron Audio provides distinctive responses for iron and steel targets. The Vortex VX9 offers search mode versatility. Choose from seven options: Thin Coin Mode, Fast Mode, Zero Discrimination, Beach Mode, Standard Mode (ideal for hunting relics, jewelry, and most international coins), USA Coins Mode, and Custom Mode. The Digital Target ID displays a large Target ID numeral on the Vortex LCD screen and provides a value from 0 to 99 to help identify targets more precisely. The Vortex VX9 Metal Detectors has other features and technologies in the VX9 that will help you "Uncover the Unseen" on your next hunt for relics, coins, and other treasures! Three-year warranty on parts and labor. Made in the USA, Garland, TX.