The MD-5002, 5006, 5008 metal detectors are designed using advanced international techniques and is made of high quality components. It is popular due to its excellent features, good detection depth, strong pinpointing performance, great discrimination and easy operation. It is mainly used to detect and distinguish metal buried in the earth. Specifications: 1) Max. detection depth: a) MD-5002: 1.5m b) MD-5006: 2.5-3m c) MD5008: 3-3.5m (only MD5008 has two search coils) 2) Suitable for checking for metal in food, fuel, and luggage 3) Suitable for detecting underground pipes 4) Suitable for mining and archeological digs Tel: 86-21-68317792-85