This Honeywell Home PROSIXCT ProSeries Wireless Door / Window Sensor is a top-quality security system that provides reliable protection for your home. Designed by resideo, this sensor is highly rated and trusted by homeowners all over the world.Whether you're looking for an upgrade to an existing security system or a standalone solution, this sensor is the perfect choice. With its wireless design, it's easy to install and use, and it's compatible with a wide range of other Honeywell Home products. So protect your home today with the Honeywell Home PROSIXCT ProSeries Wireless Door / Window Sensor.