The lockable window handle ABUS FG300A features an alarm function that responds to attempted break-ins. With a volume of 110 dBA, the alarm scares off intruders with its loud sound. False alarms caused by wind or balls hitting the window are eliminated. The hinge side of the window should also be secured additionally. Furthermore, the FG300A contributes to child safety. With the lockable window handle, parents have control over which windows children can open. The lockable window handle can be universally used on windows made of aluminum, wood, or plastic. The square pin can be adjusted to fit any window, eliminating the risk of frustrating wrong purchases.