Advanced FeTone Adjustable Iron Audio: The Fisher F19 features FeTone adjustable iron audio, allowing you to customize iron tone levels, helping you distinguish valuable targets from iron trash. This feature enhances accuracy during treasure hunts, even in iron-rich areas. V-Break Tone Discrimination System for Precision Targeting: With the enhanced V-Break tone discrimination, the F19 offers precise audio identification of various metals. This system helps you better target valuable items, increasing your chances of finding treasures and avoiding unnecessary digs Notch Window and Adjustable Notch Width for Custom Target Filtering: The F19 includes a notch window with adjustable notch width, which allows you to selectively ignore unwanted metals. You can filter out trash and focus on the most valuable finds, saving time and effort during searches. Ground Grab and Manual Override for Optimal Performance: The computerized Ground Grab automatically adjusts to surrounding soil conditions, providing optimal ground balance. The manual override allows you to fine-tune the settings for challenging terrains, including salt and mineralized ground. Backlit Display and Continuous Ground Condition Readout: The backlit display provides clear, easy-to-read data, even in low light. The continuous ground condition readout helps you monitor soil changes in real time, ensuring accurate detection and better performance throughout your hunt.