Feature:1. Efficient Control: The electronic door lock can be precisely controlled using the knob lock control box, ensuring safety and reliability.2. Convenient Adjustment: The electromagnetic door lock has an adjustable delay function, making it easy to customize for different application scenarios.3. Sensitive Sensing: The lock control box utilizes sensitive sensing technology, enabling quick response to switch signals and ensuring immediate opening and closing of the door lock.4. Safety and Stability: With the 12V power failure unlock function, the door lock can still be safely opened even in the event of a power outage, ensuring convenience in emergency situations.5. Wide Applications: This electromagnetic control box can be widely used in various settings, including homes, commercial spaces, offices, and more.Specification:Item Type: Electronic Door LockMaterial: IronOperating Voltage: 12V.Package List:1 xElectronic Door Lock1 x Lock Head3 x Key10 x Screw2 x Lock Cover