MD300 Handheld metal detectorDetailed product description：

MD300 Handheld Metal Detector

Handheld metal detector - MD300

Technical parameters
Operating frequency: 20 KHz
Weight: 272 g (including battery)
Size: Length: 420mm Width: 138mm Height: 110mm
Handle size: 30X30mm
Adjustment method: manual
Indicator: buzzer, vibration motor
Battery: 1 9V battery (can provide normal operation for 40 hours)
Control: Loop switch (ON, OFF, audio-visual or vibration mode)
LED light description: LED red alarm indicator
LED green power indicator light
LED battery low voltage indicator light

Features
1. Detecting hidden metal objects on a person's body;
2. Using a loop switch to switch between sound alarm and concealed vibration alarm functions;
3. High sensitivity, capable of detecting both ferrous and non-ferrous metals. Easy to use, convenient, and easy to adjust;
4. When metal is detected, it has both sound (or vibration) and light alarm functions;
5. Alkaline batteries operate at a 10% -15% alarm rate and can work continuously for more than 40 hours;
6. The detection distance remains unchanged when the battery is placed at around 7V from 9V. When the battery voltage is insufficient, it will automatically sound a continuous alarm.