Schlage 609 Antique Brass – Programmable Electronic Deadbolt to prevent unauthorized key duplications. Now get rid of deadbolt replacement and re-keying costs. Includes Time and date controlled access. Easy to install – fits on standard residential door preps. Provides vandal-resistant, free-spinning deadbolt turn and easily manages up to 1,000 users at a time. Also generate audit trail reports up to 1,000 events. Comprised of battery powere and no wiring required.