Magnetic Sensor Detector Switches
ম্যাগনেটিক সেন্সর ডিটেক্টর সুইচ
Easily mounted by window tape or a door.
Magnetic sensor detector switch the entrance to protect your home or office if you are inside or outside.
Warning door / window is provided free of charge in the package.
Operated by 3 pcs 1.5 V LR44 button cells (battery included in the package)
