High security - reasonable price - easy assembly

It is connected by strong bolts to the window frame and the window sash. If you want to open the window, the locking steel pin means bowl / lock and press on the pen to be unlatched. The Latching / unlatching functions 2-stage: If you push the pen in the unlatched state only slightly a, the window is indeed saved, but can simply touch again be unlatched - convenient for short absences. For full security you press the pen further a - he can only be opened with the key.

The key there are various series (numbered), so that you - as long as all locks are from a series - can open all the locks with a single key ("keyed alike"). Then you should definitely pay attention for reasons of comfort!

The installation check the enclosed assembly instructions for DIY amateur relatively easy to accomplish. Are only needed (Battery) drill, marker and screwdriver (possibly. Still tape measure / ruler), all other necessary parts are included. When you first shoring is needed 15 - 20 minutes; you already have a bit of practice, one comes also in 10 minutes to your destination. The slim design only relatively little space between window casement and reveal is required.

According to the manufacturer, the pressure resistance is more than 1 tonne, thus preventing effectively the levering of the window. The castle is VdS approved and DIN-tested, so that just in case the insurance company has less chance to dodge a regulation.

The price is certainly not cheap, but reasonable for the quality - and the (at least perceived) security growth is already unaffordable. A strong buy recommendation!