Seco-Larm Enforcer Mini Surface-Mount Electric Deadbolt, Fail-Safe (SD-997B-1SQ)

Featuring a surface-mount design for hollow metal or solid wooden door frames, the Seco-Larm Enforcer Mini Surface-Mount Deadbolt (Fail-Safe) makes it easy to add an electric lock to a small door. The deadbolt is powered by a solenoid and has a magnetic switch that senses door position for positive locking. If the lock is unlocked but the door was not opened, it automatically relocks after six seconds. Its lock delay timer is also adjustable between 0 and 3 seconds. FEATURES: Senses door position for positive locking. Fail-safe operation (unlocks if power is lost). Aluminum alloy bolt, 15/32 inches (12.7mm) diameter, 9/16 inches (14mm) throw. Door open/close monitor (NC/COM). Lock delay timer adjustable between 0 and 3 seconds. Use with an optional digital keypad for high security without a key.