... Description Wireless Alarm System· Anti-interfere function. When someone interferes it with same frequency, the control unit will activate siren to ... of remembering arm the alarm system when going out. · It stores 2 groups of monitoring center and 6 groups of user phone ... (motion) detector, 1 wireless door magnetic detector, 1 siren, 2 remote controllers, 1 power supply, 1 manualWeight: 1.2Kg/set