controlled by the handle, will allow to fix the open leaf safely. You may not worry that the leaf get slammed during ventilation.

consists of a frame part, installed next to the response plate of the corner switch. 

Microlift lever allows the leaf to close into the proper position; prevents the window from sagging from the handle side.
The blocker itself prevents the window from misuse.
All these features ensure safe and long service life of the window

Window-stop (window top view) 
Window-stop that is integrated into the scissors, prevents the window leaf from sudden closing, the leaf is safely kept open.
You can choose the opening width between 80 mm and 140 mm.
You may not You may not worry that the window will get slammed with draft.

It allows effortless closing of the door when you come out to the balcony or terrace.
It won’t cause draft or slamming the leaf against the frame.
In order to open the door upon coming back from the balcony, you’ll only need to push the door slightly.

Adjustment, locking, burglary-resistance — all in one. ROTO introduces a multi-functional locking system that possesses high service properties and maximum safety. Central lock with V-type mushroom-shaped pins meets DIN V ENV 1627-1630 for class 1 and 2 burglary-resistant windows. Similar length and standardized screw slots allow improving burglary-resistant properties of accessories by replacing one response plate with another, even after the process of installation is complete. All locking pins — E, P and V-types — match any type of response plate.

Equipping all fold details with clamps makes it easy to assemble components with straight line motions and differentiate inserting and screwing processes, which decrease assembly time by 30%.

Both types of burglary-resistant pins (P and V) ensure high reliability and security.

Using lock-equipped handles is required by al DIN V ENV 1627 levels of protection.

A secretly-installed on the lock’s outer side protective component prevents the locking construction from drilling-out and possible burglary.