This GRI Industrial Wide Gap Model 4400-A Door Contact Alarm Overhead is perfect for businesses and individuals who prioritize security. The sensor is designed by GRI and made in the United States, ensuring the highest quality. It is a door contact alarm that is suitable for use in various settings, including retail and services.

The device is compatible with all types of doors, and it has a wide gap that ensures that it is efficient in detecting any unauthorized access. This sensor is an excellent addition to any security and surveillance system because it is easy to install and use.

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