With this Extel electric lock, you can open your gate, wicket door or entrance door from your videophone. A push-button on the inside allows you to open without a key, or in the event of a power failure. The lock is right/left opening, and can be used indoors or outdoors. It's also easy to install (a template is provided). Mechanical memory lock with low power consumption. If required, you operate the lock with one of the five keys supplied.