Our MD-S1 is a high performance handheld metal detector. It's the exclusive handheld detector which is used in the Shanghai EXPO. 

Features: 

1. Audible and silent vibration alarm, both with LED display. 

2. LED changes from green to red on detection of metal. 

3. Adjustable sensitivity. 

4. Working temperature range: –15 to 55℃. 

5. Power: One 9V 6F22 rechargeable batteries. 

6. Power consumption:<50mA. 

7. Working frequency: 22kHz. 

8. Wrist strap. 

9. Non-slip handle. 

11. Dimensions: 410(L)x85(W)x45(H) mm, 400g. 

12. Box of 25: 560x450x300 mm 

Detection distance: 

1. Pin：30-60mm 

2. One yuan coin: 75-100mm 

3. Dia 20mm steel ball: 120mm 

4. Knife：160-180mm 

5. Gun：180-195mm 

Where to use: 

1. Police, Army & Court 

2. Entertainment & Exhibition 

3. Electronics factory 

4. Courthouses, police facilities and government 

5. Prisons and jails 

6. Embassies and broadcast studios