YS-622N-S (SS304) This high-security electric strike (stainless steel) for double-door fire push-rod is designed for use with European and American standard fire push-rod locks. It offers both electronic control for normal operation and manual opening for emergencies. It features a set of door status signal outputs (NO, NC, and COM) to provide feedback to the access control system. This patented design integrates the internal moving parts, resulting in a robust structure and stable performance. It can be set to either (NO ‘Fail-Secure’ Power to Open) or (NC ‘Fail-Safe’Power to Lock) on-site. This model is constructed entirely of 304 stainless steel and has passed the EU 3-hour fire rating certification. When fire emergency exits require access control, this product transforms the one-way mechanical push-rod lock into a two-way access control system. It is the optimal solution for integrating emergency exits with access control systems in public facilities such as commercial hotels, office buildings, cinemas, airports, subways, factory buildings, and shopping malls.