Video door entry system Extel 4" with touch buttons.The door entry system of the video intercom system Extel Compact was specially developed to combine robustness and practicality. Its aluminum housing meets the requirements of the highest impact strength standards and with a width of only 70 mm it is suitable for all residential buildings. It is connected by 2 wires with the indoor monitor, whose touch-keys and ultra-flat design promise an optimum operating comfort.Ease of use and installation- Night vision thanks to infrared LED- 11 cm (4-inch) screen with touch buttons- Polarity Protect function to prevent incorrect connection of your video door intercom systemSuitable for all houses- slim door entry system (70 mm), which fits every door post- up to 100 m between your gate and your entrance door- controls your electric door opener AND gate drive (compatible with all brands)Improved security- Monitoring of your input area thanks to integrated monitoring function- weather-resistant: I