A Reed contact switch is a normally open contact which closes in the presence of a magnetic field. This modules contains a 10 Kohm pull-up resistor.
voltage: 5 VDC
connection: 3 pins, +(middle pin), ground and DO (data out)
dimensions: 25 x 15 mm
weight: 2 g
Specifications
Voltage : 5 VDC
connection: 3 pins, +(middle pin), ground and DO (data out)