Suitable for all windows that open inwardly, the wireless security window handle replaces the existing handles of conventional windows. The lock is monitored even when the alarm system is disarmed. Intruders immediately set off the wireless security window handle the moment they first attempt to open it; they are faced with a solid steel bolt that delivers a pressure resistance of over one tonne. At the same time, and long before the mechanical lock is pushed to its limit, the Secvest wireless alarm system emits an alarm.