keyless entry query

hey guys
i've recently been looking at all the optional extras that was available when the eg was first out and some come with keyless entry where there was a infa red sensor in the door handle, on my civic i have a key fob that opens the car via the central lockin but i dont have the infa red on the handle.
can any1 tell me the difference between them?
cheers thanks 4 ur time
leon
i've recently been looking at all the optional extras that was available when the eg was first out and some come with keyless entry where there was a infa red sensor in the door handle, on my civic i have a key fob that opens the car via the central lockin but i dont have the infa red on the handle.
can any1 tell me the difference between them?
cheers thanks 4 ur time
leon