The Oxford advanced heated grips are excellent quality and they have a great range of heat levels. Much better than the Triumph OEM ones for heat! They come in several different guises, all called by different names. The basic difference is the length of the grips. You need to measure the grips on your Tiger and make sure that you get the variety with the nearest length. Also make sure that the diameter of your bars is correct for the grips you choose.
The advanced range can be wired directly to the battery and will automatically switch off when you turn the ignition off, just make sure that the grips you choose have this feature if you plan to wire to a permanent live.
The only thing that I do not like about the Oxford grips is the hoofin' great controller which you have to fit somewhere