![](https://b3169106.smushcdn.com/3169106/wp-content/uploads/2023/12/Windowmaster-WSK-320-Manual-Callpoint-for-AOV-Smoke-Vent.jpg?lossy=1&strip=1&webp=1)
WSK 501 – Manual Call Point
WindowMaster WSK 501 manual call point (Breakglass) for use with compatible Smoke Control Panels. Upon a signal from the Manual Call Point (MCP) the AOV or OV Smoke Vent will open releasing the smoke detected in that area.