Contact Sensor DK-101
Contact Sensor DK-101 (magnetic contact sensor, reed switch)
Operating principle: works using a magnet and a reed switch. When the magnet approaches, the contacts close.
Application: security alarms (door/window opening).
Advantages: inexpensive, easy to install.
Disadvantages: may trigger false alarms during strong vibrations.
For installation on site, the contact sensors have a standard M8 thread.
Both horizontal and vertical installation of the DK-101 contact sensor is possible.