sonsor additional alarm siren with internal loudspeaker and optional battery monitor

Note: Can only be used in conjunction with the sonsor alarm system (mobile phone or WLAN).

If the built-in sensor's built-in signal tone is too quiet for you, the alarm siren is an additional extension for your mobile alarm system. The combined battery monitor and alarm siren expands the ellioS system with a loud, acoustic deterrent in the event of a break-in.

The integrated battery monitor is an additional feature and is available when the alarm siren is powered by the 12-V vehicle electrical system. It provides information about the current status of the interior battery.