The JA-63A siren is designed for outdoor use. It is powered from its own AC adapter and has a built in back up battery. The siren commu-nicates wirelessly with the control panel (two way communication). It contains a high powered siren and a flashing light with a colored lens. In addition to signaling alarms, it can also provide arming and disarm-ing chirps. The siren makes regular auto testing and reports its condi-tion regularly to the system for full supervision. Built in tamper sensors trigger an alarm if there is any attempt to tamper with the siren. Only one JA-63A siren can be used with a JA-6x control panel.