2X Magnetic Reed Switch Normally Open Closed NC NO Door Alarm Window SecurityMagnetic Door SwitchMagnetic Contact SwitchReed Switchto DC 5V 12V 24V Light Black

Product Description: Magnetic Contact sensors can be added to an existing wired Alarm Systems. They are ideal for protecting doors, windows and patio doors and any opening device such as a drawer or cupboard for example. In the event of no contact the alarm will be activated immediately. Magnetic Contacts are perfect for use in situations where it is not suitable to fit PIR sensors, for example where there are pets or animals. Technical Specifications Product Name : Magnetic DoorContactReed Switch Model: 31B Material: Anti-fire ABS shield Color: black Connecting mode: N.C./N.O conbined Rated current: 500(mA) Rated voltage: (VDC)100 Operating distance: more than 15mm, less than 25mm Rated power: 10W Dimension: 55*12.5*11.5mm Mounting Hole Size : 7 x 2.5mm/ 0.28" x 0.1"(L*W) Recommendations in application: wooden door, window, metal doors, gates and any other compatible application. Included: 2 Sensors, 2 Magnets, 8 screws? It's reliable magnetic switch. It's great for door alarm sensor, small power switch,Please contact us via amazon order when you have any questions or problem, we will make you 100% satisfy.