The Mini Angel is fitted into the stiles of the top sash – one on each side.
The units are single action, so fitting two ensures compliance with ASTM F2090 - 2008 and 2010.
The unit is primarily factory-fitted as access to the sash is required. However, provided the sashes can be removed easily, the Mini Angel is also suitable for use where the sashes have already been installed.
The unit is clipped into a slot in the face of the top sash. The units are therefore tamper-proof.