In May 2005 the latest European (European Union) directive on automatic and manual doors came into force, forcing manufacturers and installers to comply with a series of obligations regarding door safety. One of the most important points of mandatory safety are the photocells that detect obstacles and the warning lights for opening and closing the doors. Regardless of whether the installation is carried out by a technician, or by us as private individuals, even in compliance with regulations, the first thing we must always keep in mind is the safety of those who will use our doors, of those who will be near them, and of who we. Say no to plagiarism. Get a tailor-made essay on "Why Violent Video Games Shouldn't Be Banned"? Get an original essayMany users when they decide to install an automation, try to do it in the cheapest way possible and, as in almost everything we try to save as much as possible, in addition to compromising the life and functionality of the engine, the level of door security is drastically reduced, despite being a certainly dangerous element in everyday life. The indicator lights, despite their low cost, represent one of the most appreciated safety elements, especially for third parties. They warn that a door is moving, so pedestrians and other vehicles are prepared to take necessary precautions before a vehicle enters or exits, or the door itself moves. Obstacle detection photocells have a very high safety component, as they immediately stop the closing maneuver of a door and also make it retract if the motor is equipped with an "encoder system". This is a great advantage, because in the event that the car stops in the center of the door during closing or stopping in an emergency, or when crossing a pedestrian, a child, a bicycle, etc. . the door stops immediately. The motors with controls with anti-panic system have represented a true safety innovation. This system cancels the signal of all commands while a door is opened, thus avoiding accidentally pressing a button that commands its closing and therefore eliminating the risk of impact. Safety is the real and most important reason when you decide to install safety elements: photocells, bands, light indicators, motors with encoders, controls with anti-panic system, etc... . .