This metal detector A88 non-contact metal induction detection module can be used as a metal detector. You will hear a sound when approaching metal.
This is a module specially designed for metal detection. This module works by inducing an electric current through a metal object and responding when it occurs.
A good onboard buzzer signals when something is detected, and an onboard potentiometer allows for sensitivity adjustment. The power leads of the metal detector non-contact metal induction detection module must be soldered for the module to function. The outside of the module is positive and the distance between the potentiometer and the electrolytic capacitor is negative.
Features :
- V+ Connect to power positive
- V- connect to power negative
- Adjust the potentiometer, let the modules work normally.
- Small and easy to use module.
- It comes with a Buzzer for metal detection indication.