E-Z Gate Indoor Base Station for Driveway Alarm by Mighty Mule: * Can be used as a replacement or additional indoor base station for the DA1000 (E-Z Gate Wireless Driveway Alarm) * Alerts you with a chime when a vehicle passes the driveway sensor * Simply plug into a basic wall outlet and follow the programming instructions (included) * The indoor base station includes a volume setting * The DA1000 (E-Z Gate Wireless Driveway Alarm) can trigger up to 4 Indoor Base Stations (DA1001)