Electric Drop Bolt Lock, Fail-Safe with Time Delay, 12V DC Electronic Lock for Access Control System, Security Door & Gate

Fail-Safe design automatically unlocks during power outages, prioritizing personnel safety and emergency egress. | Crafted from durable die-cast aluminum alloy, the housing withstands frequent use and harsh conditions, featuring a corrosion-resistant finish for reliable performance in various environments. | This Electronic Bolt Door Lock has time delay function, and the delay time can be set to 0s / 3s / 6s. | Simple screw-on mounting saves installation time and cost,Perfect for glass doors, metal doors, and wooden doors in various settings | Compatible with most access control systems and electronic door openers,Suitable for offices, warehouses, storage rooms, and fire safety doors