- Detection range: 3–5 cm depends on metal size; larger metal areas are detected at greater distances. - Purpose: Designed for gaming entertainment and scavenger hunts, basic security checks, and locating metal objects around home or workshop. - Function and learning: Detects surrounding metal objects and provides a practical way to understand basic electronic circuit principles. - Kit contents: Includes a simple metal detector kit with essential parts and straightforward assembly. - Key benefits: Compact and lightweight, beginner friendly, affordable entry into metal detection, suitable for education, play, and practical searches. - Use scenarios: 1) Family treasure hunts and interactive games at home; 2) Classroom or maker space demonstrations of circuits; 3) Locating dropped screws, nails, or other small metal parts around a workshop or garage.