Check the listing for details. Detection Systems DS7140 Home Security System Keyboard Burglar Alarm. Condition: Used. Listed at 49.99 USD. Experience the peace of mind that comes with the Detection Systems DS7140 Home Security System Keyboard Burglar Alarm. Designed for ease of use and reliability, this burglar alarm is an essential addition to any home security setup. The DS7140 model seamlessly integrates with your existing system, providing a user-friendly interface to manage your security preferences. Crafted by Detection Systems, a trusted name in home security solutions, this control panel is part of their commitment to deliver top-notch protection. The intuitive keypad allows for quick and efficient access to your alarm settings, ensuring that your property is secured with minimal hassle. Perfect for those looking to enhance their home's safety with a dependable and straightforward security solution.