Any interruption or loss in power will keep the lock locked and will not open. Users simply need to lock or unlock the device while the power is connected, and the device will remain operational. The device will auto-lock if power loss is detected, making it much more tamper proof and hard to break into for intruders.
eBay
Power Consumption 6~9V DC 350mA. Holding Force 100KG. Working Temperature -20ºC ~ +60ºC. Operation Mode Fail Locked.
eBay
(Electric Drop Bolt Lock. Secure Mode: NC model/ fail safe model ( Locked when power on, unlocked when power off ). 2) Secure mode: The door will lock while supplied with power, and unlock without power.
eBay
Item Type: Electric Drop Bolt Lock. 1 x Electric Drop Bolt Lock. If you do not receive our reply within 48 hours, pls. If you are satisfied with our service, pls.
eBay
DC12V Elektrisch Schloss Zutrittsschloss Verriegelung Türöffner Türschloss. Electric Drop Bolt Lock DC 12V Fail-Safe NC Mode Electronic Door Lock for Access. Secure mode: The door will lock while supplied with power, and unlock without power.
eBay
YLI is biggest lock factory in China,the lock high quality and working very stable ! YLI YB-80 Fail Secure Lock x1. Feature Fail secure(Unlocked when energized). We will send the item as " GIFT ".
eBay
Stainless Steel Construction: Crafted from stainless steel with a brushed finish, this mini electric bolt lock is designed for high strength, ensuring reliability and durability. Anti Tamper Magnetic Locking: The lock features an anti break magnetic locking design, preventing unlocking unless power is cut.
eBay
Made of High Aluminium Alloy material with heavy duty. 1 Electric bolt lock. Lock Way: Fail-Safe: for Unlock When power OFF, Lock when power ON. Lock Type: Magnetic Sensor. Material:Aluminum. Sensitively and for response quickly.
eBay