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HALJIA Metal Detector Module 5V Non - Contact Metal Sensing Detection Module Buzzer Adjustable

Regular price $4.99

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Working voltage: DC 5V;
Detection distance: 1CM or less.
The board size: 60.2*65.2mm
Red line: connect to power positive;
Black line : connect to power negative;
Adjust the potentiometer, let the modules work normally.
Used as a metal detector. When metal near, it does make a sound.

Packing List:
1*5V Metal Detector Module