Garage door openers can be operated either by a remote or by an outdoor keypad where you punch in your code to open or close it. It doesn't provide the actual lifting power to open and close a heavy garage door, because most of the actual lifting power comes from the counterbalance springs that are under tension to lift it via steel counterbalance cables. It only controls how far the door opens and closes, as well as the force it exerts. It also acts as a lock in most cases. Over the years, it continuously improved to feature automatic courtesy lights that turn on when the door opens (or via motion sensors) and automatically turn off after a preset time delay. While one is on vacation or away for an extended time, others also come with a remote lockout feature, which turns off the radio receiver. There are already made available accessories such as wireless keypads and key chain remotes. Different mechanical drives have also been developed. Newer systems allow for the door to be moved with very little force and the door can also be stopped in partially open positions. A fingerprint-based wireless keypad comes already with other garage door openers. This unit attaches to the outside of the garage door on the jamb and allows users to open and close their doors with the press of a finger, rather than creating a personal identification number (PIN). This is especially helpful for families and individuals who have a hard time remembering so many passwords or codes. More sophisticated garage door openers come with integrated carbon monoxide sensor to open the door in case of the garage being flooded with exhaust fumes. Other systems allow door activation over the Internet to allow home owners to open their it from their office for deliveries. However, this feature violates Underwriters Laboratories (or UL) safety codes that state the door must be in the line-of-sight of the person operating the door for safety reasons. Apart from convenience, it also offer a certain amount of security and safety because they keep your garage door shut unless opened by a remote or by punching in your code on the keypad. This assures that all the stuff you have kept in the garage remains safe from intruders and thieves. garage door openers are America's number one brand. Every Genie is designed for strength, security and longevity. Our goal is making access easier to ensure the finest quality ever made. Garage doors shouldn't be an afterthought on your home; rather, they should be viewed as an extension of it. Not only does it increase curb appeal, it improves security and adds value to your home. Article Source: http://EzineArticles.com/2543734
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