Reed Relay Module - 3-5V

This module can detect a magnetic field. The reed relay makes contact when a magnet comes close.
The sensitivity can practically not  be adjusted with the potentiometer. The reed relay usually makes/does not contact (and not half)
However, a limit value must be set with the potentiometer so that the module works correctly. This module is particularly intended for easy use of a reed relay with direct output.

Pin description:

• VCC: 3-5V DC
• GND: min/ground/gnd
• DO: digital output