External siren for the PowerMaster system. Bi-directional PowerG radio technology. The siren provides visual and acoustic notifications (piezo) of intrusion, fire alarms, low battery and communication failure. Piezo of 110 dB and strobe light of high luminosity, clearly signal any jump alarm. Lenses in red, blue, orange or white. Large free space for printing logos. Stylish and robust design resistant to weathering (IP55). Visible indication of signal quality in the device.