A normally opened reed switch is used as a sensor to operate the module. When a
magnet is brought closed to the switch the amplifier will output a digital signal for
further processing. It can be used in alarm systems, in machines as proximity switch etc.
Operating voltage: 3.3V to 5V
Standby current: 15ma max.
Dimensions: 32 x14cm
Connections:
Vcc: 3.3Vto 5V
GND.: Negative terminal of battery
Do: Digital output low