Skylink Otodor 4-Button Remote Control (4B-201)

The Skylink 4-Button Remote Control for Automatic Swing Door Opener allows you to wirelessly operate a Skylink swing door opener. With four buttons, the transmitter can remotely control up to four swing door openers in toggle mode (Button 1: open/close), or two openers in open/close mode (Button 1: open, Button 2: close). You can program up to 15 single button-transmitters to the swing door opener. This is ideal if you have multiple users for one door and they can carry their own remotes. Rolling Code Technology Every time you press your remote transmitter, a code is generated which is recognized by the receiver that in turn performs the desired function. With most systems, there is only one assigned code. Whenever the remote is pressed, it generates the same code, making it vulnerable to code grabbers who use electronic scanners to steal the code. With rolling code technology, each time the remote is used, it generates a different code which can only be recognized by a rolling code receiver. Even if an electronic scanner picks up the code, the next code will not be the same, and the receiver will not recognize the old code. As a result, systems with rolling code technology are increasingly safe and secure.