ITEM NAME:Electric Bolt Lock Deadbolt Drop Bolt NC Mode Door Lock for Security Access D5H4 Electric Bolt Lock Deadbolt Drop Bolt NC Mode Door Lock for Security Access D5H4 With door close time delay function, will lock until the door completely stop moving, effectively protect the door and lock from damage.Superior low temperature design, safe and durable. The new structure optimization design, more stable and more secure. Ultra-low-power design, more durable and more environmentally friendly. 500,000 times Power locks durability. Made from high-strength aluminum lock body, stainless steel bolt. Operating Modes : NC (close when
