This product is suitable for residential buildings, public gates, organs, schools, hotel buildings, factory warehouses, and other departments. High-quality iron, iron wire drawing process, anti-corrosion lock surface, durable and aesthetic. It can be used with signals from all building intercom and access control systems. Long service life (more than 500,000 times), high sensitivity, ON / 0F. No collision - reduce the choice of door closers and avoid collision noises if the door is not easily deformed. Unlock by mistake or unlock without entering, the door can be locked in 5 to 8 seconds. The unit is connected by two wires for electronic access. With electronically controlled unlocking unit and spring-adjusted balance unit. The lock is an important tool for maintaining families, nursing homes, schools, and other places. Choosing a good lock is equivalent to choosing safety and confidence. This lock can help you solve all problems. It is durable and will not be easily damaged. It is