Winbest Pro Edition Metal Detector w/Arm Rest & Preset Balances. This Metal Detection Device manufactured by Winbest has a discrimination sensor with an All Metal option that allows you to choose the kind of metal you wish to detect. Just turn the DISC dial on the Winbest Pro Edition Detection Device to 11:00 for Iron 12:00 for Nickel Coin 13:00 for Zinc Coin and 15:00 for Copper Coin. This Winbest Metal Sensor comes with 6.5" waterproof search coil so you can hunt in shallow waters. The Winbest Pro Metal Detection Device also has a SENS knob that grants you the ability to increase or decrease the sensitivity depending on conditions. The Pro Edition Metal Sensor by Winbest lets you know that you have found something through the view meter that reacts when the search coil has detected something. The Winbest Metal Detection Pro Edition has a volume knob and a jack for headphones so you can eliminate any background noise that may impede your hearing. Specifications for Winbest Metal Sensor Pro Edition: Detects: All Metal Search Coil: Waterproof Battery: 2 9V Ground Balance: Automatic Sensitivity: High Features of Winbest Pro Edition Metal Detector All Metal / Discriminate Modes Submergible Search Coil Adjustable Sensitivity Low Battery Indicator Adjustable Arm Rest Adjustable Stem Headphone Jack Volume Control Package Contents: Winbest Metal Detector Pro Edition BE11638 Winbest Pro Edition Metal Detector w/Arm Rest & Preset Balances BE11638