Hand-Held Metal Detector with High Sensitivity

Function: Detect metal objects hidden person
Features:
1, respectively, cyclic switch to switch sound alarm and vibration alarm hidden
2, high sensitivity, capable of detecting ferrous and nonferrous metals. Easy to use, convenient and easy to adjust.
3, when the detection of metals with a sound (or vibration) and optical alarm functions at the same time
4, alkaline batteries alarm at 10% -15% the proportion of the work, continuous work 40 hours or more.
5, the battery 9V to 7V put about the same detection range. The battery voltage is insufficient, it will automatically continuous alarm.