Description Secvest Wireless Window Handle FG 350 E (silver) Lock monitoring for windows. It reliably transmits the status "open" or "closed." Easy installation by replacing the existing window handle. An added benefit for your security - for quick and easy securing of windows. The Secvest 2WAY Wireless Window Handle FG350 E is a discreet and aesthetically pleasing solution for window security. Thanks to its integrated magnetic field sensor technology, the Secvest 2WAY Wireless Window Handle reliably informs the alarm control panel about the window's status (open/closed). The window is considered closed in the system only when the handle is locked. This allows the handle to trigger a reliable alarm in the event of a break-in attempt. The handle is available in silver, white, or brown. Features: Lock monitoring for windows. Reliably transmits the status "open" or "closed." More security: No leaving the house with the window left open.