Features: Double Mode Electric Lock features not (Normally Open) and NC (Normally Closed) operations, ensuring stable access control during power fluctuations while maintaining emergencies exit compliance. Constructed with heavy duty metal housing, this electromagnetic lock withstands frequent use and integrates seamlessly with most access control devices through its general wiring compatibility. Ideal for security personnel, facility managers, and homeowners seeking safe door security solution that balance emergencies protocols with daily access management. Optimized for commercial entryways, server rooms, and restricted zones requiring quick lock capabilities without compromising fire safety regulations. Engineered with tool easy alignment adjustment and pre drilled mounting templates, this electric lock simplifies retrofitting onto steel/wooden doors while maintaining compliant accessibility. Specifications: Component : metal Length: about 150mm/5.91inch Width: about 28mm/1.1inch Type: 2 for option Package Includes: 1xCathode Lock note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.