From the Manufacturer
Automatically open / close swing door up to 100 lbs and 42 inches wide. Works with 4 different types of swing door: In-Swing Left, In-Swing Right, Out-Swing Left, Out-Swing Right. 3 different operating modes: Toggle Operation, Open / Close Operation, Timer Operation, closes door automatically after a specific period of time. (user programmable) Good for Exterior doors or doors that need to be locked. Controlled by swing door opener. Fail secure electric strike. No additional power supply is required (power supplied by the swing door opener).
The full-featured Skylink Automatic Swing Door Opener, With Electric Door Strike automatically opens and closes four different types of swing doors with the included wireless transmitter. The opener's "Hit and Stop" feature and audio warning ensure the highest degree of safety possible. The opener also automatically learns the door's travel limit, so you don't have to worry about damage to surroundings. 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.