Features
It is suitable for wooden doors, glass doors, iron doors, stainless doors with 90 degree one-way opening (only open or open inside), and is used with building intercom system and access control system.
Hexagonal screw with screw wrench, security anti-theft, bottom with shading, very high-end atmosphere
https://www.chinaautomaticdoor.com/accessories-for-atuomatic-gate-door-opener/electromagnetic-lock-for-auto-doors.html