The Yale Smart Home Alarm Starter Kit is a home alarm system built with you in mind, allowing you to arm and disarm your system via your Smartphone. Arm/disarm and configure your alarm anytime, anywhere via your smartphone. Pre-linked - Yale smart home alarms come with components already linked to the smart hub. This makes installing your alarm quick and easy. Providing complete peace of mind and knowledge that your home is secure. You can check your home anytime, anywhere via the app, and you can receive alerts and notifications if the alarm is triggered. Wireless and easy to install. Keypad operated. Control pad operated. Range 30m. Entry_exit delays. Fully expandable system - up to 20 accessories/zones. Pack includes: Wireless control panel. LED indicators. Batteries; fixings and installation DVD. Batteries required: 3 x AAA (included), 1 x (included), (not included). Size H25, W11.5, D11.5cm. Manufacturers 2 year guarantee.