Build the ideal home security system tailored for your needs. At Emerald City Surveillance, our selection of home alarm components includes many essential items that provide total home security. You can find kits that include central hubs, door sensors, window sensors, and keypads to help you get started. They are easy to install and simple to operate. We have panic buttons that will activate your security measures to help keep you safe. Our keypads are packed with advanced security features including rolling code encryption and authentication, jamming frequency detection, tamper alarms, and more.