Magnetic Door Window Contact Reed Switch Alarm Kit for DIY, Pack of 10

About this item

• 【Reed Switch】: This is a magnetic switch that creates connectivity when a magnet is nearby and breaks connectivity when the magnet is removed. It can be added to both wireless and wired alarm systems, although some wireless systems may also have wired zones.
• 【No External Power Needed】: This switch can be connected to a wired alarm control panel by directly connecting the GND (Positive) and NC (Negative) ports, ensuring signal stability without relying on battery power. Please note that while these switches require wiring for connection to the alarm control panel, the necessary wires are not included in the package.
• 【Install Distance】: The gap between the two pieces of the switch should be more than 15mm and less than 25mm. The switch is white in color, adding elegance to your home, and is made of fire-resistant ABS material.
• 【Install Attention】: This item cannot be directly connected to power. It functions by providing a switch signal to your alarm system. It operates under a maximum working current of 12V.
• 【What NO NC Means】: NO (Normally Open) means that the circuit is conductive when the magnet is separated and not conductive when the magnet is together. NC (Normally Closed) means that the circuit is conductive when the magnet is together and not conductive when the magnet is separated.