Features: The 535T window automation system controls the operation of 2 windows in both directions or 4 windows in 1 direction. The 535T automatically rolls up the power windows when the security system is armed, as well as providing "one-touch" operation from the vehicle window switch in either direction. The 535T can also be used to vent or roll the windows down with an auxiliary channel from the security system. OVERVIEW 4 Window Mode Features: 4 Window Closure only mode. 2 Window Mode Features: 2 Window up and down Window Venting (Part opening) One Touch closure with Ignition on Options: Full Closure on alarm trigger Delayed Input