Hello Nagaraj
All of the APs support the ability to detect rogue devices. They can do this while servicing clients on a particular channel or you can set them as a sensor. For APs like the 4610 and 4620 one radio can be set as a sensor and the other set to either 2.4 or 5Ghz. The 4511 is a single radio so if it is set to sensor then it can not service users.
I hope that helps
P