... alarm information on LCD * GSM alarm system * Four way alarm/disalarm LCD house anti-thief alarm system (LS ... -GSM-101)Four way alarm/disalarm: keypad, remote, phone and SMS ... easily to add the sensors as you want* Four way to arm/disarm: keypad, remote, phone and SMS ... display can show the alarming information* Two-way to communicate with speaker* Can protect the alarm ...