Elenco EDU36966 is a versatile and feature-rich metal detector that is perfect for both beginners and experienced treasure hunters alike. With its dual operational mode, you can choose between "All Metal" mode for maximum sensitivity or "Distinction" mode to discriminate between different types of metals. The 5 LED indicators help you to identify the type of metal you have found, and the tone-assisted indication provides additional feedback. The ground balance feature ensures accurate sensitivity adjustment, and the fine-tuning knob allows you to further refine your search.