Ideal for coin, beach, and relic hunting the Tarsacci MDT 8000 Metal Detector excels where other detectors might struggle with very mineralized ground. It is lightweight, durable, waterproof (IP68 rating, up to 1.5 meters for up to 30 minutes), and made in the United States, California. First, of its kind, the Tarsacci MDT 8000 has Mixed Domain Technology, making it not a multi-frequency machine or single-frequency VDI machine but a Selectable Frequency Metal Detector.