Description: 8 led display of defense zone Build-in dialer with build-in siren Telephone line anti-cut function Record your own personal message for ten seconds Up to 6 telephone numbers can be pre-stored in the unit and dialed to summon help in priority order. Remote command and access to the system from anywhere via a telephone/mobile Emergency/panic button is available for 24 hours whenever arm/disarm |¨¬ Relative humidity: ¡§a_ 90% Dimension: 340mmx 250mm x 78mm (gift box) Net weight: 1.2kg If you want to know more information¡§a»s about wireless alarm system, please contact us by email, thanks. Hope we could help you on business. Look forward to your favorable reply. Summer pan Dimension: 340mmx 250mm x 78mm (gift box) Net weight: 1.2kg