A door contact sensor is a small but very useful device that helps you know when a door or window is opened. It is one of the most common and effective parts of any home or office security system. The sensor has two parts — a magnet and a sensor switch. The magnet is usually placed on the door, while the sensor is fixed on the door frame. When the door is closed, both parts stay close together. When the door opens, they move apart, and the sensor immediately detects this change.

As soon as the sensor senses that the door has opened, it sends a signal to the main alarm system or your smartphone. This alert lets you know right away that someone has entered or the door has been opened. Door contact sensors are very easy to install and work quietly in the background. They are commonly used on main doors, windows, office entries, and shop shutters to increase safety and security.

Using door contact sensors helps prevent unauthorized entry and keeps your property safe. They can also be connected to alarms or CCTV systems for added protection. Small, smart, and reliable — a door contact sensor is a simple device that gives you big peace of mind.

At Alif Tech Security, we provide high-quality wired and wireless door contact sensors that are easy to use and perfect for homes, offices, and businesses.