MD318B is based on MD318, it has been added meter indicating function, and it is intuitionistic. MD318B discriminating metal detector is special design to classify 2 kinds of metals, ferrous and non-ferrous. It makes it possible for operators to discriminate valuables from trashes effectively, and furthermore recognize copper from aluminium. MD318B is RoHS-compliant and carry CE approvals.

MD318B can be used for:
1. Airport, bus station, and harbor electronic checking;
2. Custom, police, frontier defense, prison, mine and defense department security checking;
3. It is a convenient facility for treasure-finding, plays will enjoy their treasure-hunting on beach and meadow;
4. Archaeology, mine, detecting valuable metal and metal well cover.
Features:
1. Visual ,audible alarm and meter indication;
2. Discriminating for different material with different sounds;
3. Adjustable sensitivity control;
4. with earth equipoise circuitry, it can eliminate mineralize affection
5. Automatic low voltage alarm, information will be appeared on LED;
6. Adjustable handles for comfortable use;
7. Two sized search coils (10inch / 8inch), the big sized search coil is Waterproof；
8. Output headphone for the operator.
Specification:
1. Detection depth:
   50 cents (US): 22cm (10 inch search coil)
50 cents (US): 15cm (8 inch search coil)
2. Power supply: 2 pcs of 9V batteries
3. Current consumption: 18mA (stand by current)
4. Operation temperature: -10~+50℃
5. Adjustable handles: 104~124 cm
6. Size of search head: 8 inch or 10 inch
7. Weight: 1.5kg (approximate)