Safety - When an obstacle (child, car, etc.) is encountered, the gate stops and starts moving in the opposite direction Convenience and flexibility of settings. In the event of a power failure, the gate can be opened by loosening the drive with the wing screw Control buttons: an alternative to external control buttons (e.g. bell) on the wires (or the keyboard encryption, access protection reader, GSM module, etc.) Expandable - the possibility of connecting a range of accessories m.in: - additional remote controls - photocell - an antenna for increased range, - a wireless keypad code, - key switch;.Surge protection: IT IS There is also the possibility of using the battery of the same company for attachment (not included), which allows you to maintain multiple cycles of opening and closing