All metal structure, safety.

Anti-break design, durable.

100000 tested mechanical life.

Suitable for access controls,fireproof door, alarm.

Official authorized product of access control project.

KS-381ES  is an European type emergency release button with key  in size of 86Lx86Wx48.5H(mm). They are often used in public authorities, banks, large、small and medium-sized enterprises, department stores and residences.