In addition to free installation and round-the-clock security monitoring, you will receive a free residential security system with this plan.  Below is the system you will receive with the Interactive 3a plan:

LYNX
adt_wireless_motion_detector-1
four_button_wireless_key-1
automated_door_lock-2
ADTS-GUARANTEES
adt_mirco_door_and_window_contact_sensor
adt_wireless_indoor_camera-1
plugin_lamp_dimmer_module-2
adt_pulse-1

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