When choosing door alarms, consider the installation environment, mounting style, and detection needs, such as a discreet recessed contact, a surface-mounted sensor, an outdoor gate sensor, or a model with shock detection. Verify that the alarm communicates with the customer’s security panel, and look for useful features such as tamper detection, low-battery or supervisory alerts, wireless operation, and a finish that suits the door or frame.

Wireless door alarms connect to an existing security system through a compatible alarm panel, hub, or base station using a supported radio protocol. After you enroll and pair the sensor, the system receives open, tamper, and low-battery signals, then can trigger an alarm or send notifications based on its programmed settings.

Choose recessed door alarms when you want a discreet installation within the door or frame, while surface-mounted sensors suit installations where easy access to the frame and mounting with adhesive or screws matter more than concealment. Choose outdoor door alarms for exterior doors and gates, using sensors designed for outdoor conditions and mounting methods such as screws or zip ties.

When selecting door alarms, compare system compatibility, contact and tamper detection, optional shock or impact detection, wireless communication, battery life, sensor size, and indoor or outdoor installation suitability. Also review mounting requirements, such as adhesive, screws, recessed installation, or an extended magnet gap, so the sensor fits the door or gate and the available installation space.