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Home > Locks > Pushbutton Locks > DL2700 Series Alarm Lock T2 Trilogy Digital Lock . Previous Next. Download DL2700 Installation Instructions. DL2700 Trilogy t2 dl2700 installation manual British Columbia DL2800 Series Alarm Lock T2 Trilogy Digital Lock - Easy to install in about an hour. DL2700 Series Alarm Lock T2 Trilogy Digital Lock .