High-sensitivity Handheld Metal Detector MD-200 With Sound & Light & Vibration Alarming Detects
Product Description
I. Overview
MD-200 hand-held metal detectors apply to airports, railway stations, prisons, courts, entertainment, sports and other very precision and high sensitivity

2, the characteristics
Cyclic switch sound alarm and hidden vibration alarm respectively. High sensitivity, can detect ferrous and nonferrous metals.
Suitable for simple, convenient and easy to adjust. With a sound (or vibration) and light-emitting alarm simultaneously when detect metal.
Alkaline batteries alarm ratio of 10% -15% work more than 40 hours of continuous work.
9V battery discharge to about 7V, can detect the distance constant. When the battery voltage is low, it will automatically continuous alarm.

3, the detection distance

Black metal detector distance
1/2 pin 10mm
Six-inch dagger 150mm
8mm 40mm diameter steel balls
Non-ferrous metal detection distance
10mm * 5mm * 0.08mm aluminum / copper 10mm
DIP14 IC IC 5mm
1 gram silver ring 40mm
1 gram lead weights 30mm