Telephone line cut off alarm function option:1) DC 9V power supply, standby current less than 25mA2) Six group of alarm telephone numbers pre-stored3) 10 seconds alarm voice messages recordable 4) Convenient key input is prepared on the front panel5) Guard setting time delay option (0~90sec. selectable)6) Alarm setting time delay option (0~90sec. selectable)7) Setting guard or withdraw guard by telephone 8) Listen in sound around the alarm system by telephone 9) Siren alarm time length control option (1~25 minutes selectable)10) Four guard zones can be set on guard or withdraw guard independently11) One panic key with sound for help is provided on the main set12) One panic key with sound for help is provided on the remote controller 13) Another panic key without sound for help is provided on the remote controller14) Multiple types of detector are matchable, such as PIR, door contacts, smoke detectors 15) Rechargeable battery provided for power cut-off backup16) Report the alarm messages to an administration computer by telephone network17) Convenient key input is prepared on the front panel18) Password input first before operate the keypad function19) Stable performance and easy to install 20) 120dB siren speaker enclosed21) Standard configuration: one main auto-dialer alarm control set, two remote controllers, one door magnetic switch, one infrared detector, one 120dB siren speaker, one DC 9V power adaptor22) Weight: 1.35kg/each kit23) Size: 335 x 246 x 72mm24) 10pcs/ctn25) Minimum order: 100pcs with favorable prices