An IR blaster? Isn't that just what connects to the front of the device (like the AV receiver, bluray player, etc. )? If so, I'm trying to avoid that so I don't have to stick the blaster to the light switch plate.
An IR emitter is what your thinking. An IR blaster floods the area with the IR signal. You simply need to place the IR blaster within reasonable line of site to the switch. The maestro has pretty broad range so this shouldn't be to difficult.
What do you use for a remote now?
Logitech has an IR extender with mini blasters similar to the one available with the 900 (FYI the 900's unit is RF then blasts out IR). I just mean they look similar. http://www.ebay.com/itm/Logitech-Har...item5648d8da28
The big unit is a blaster, along with the mini blasters.
You can also use something like the x10 power mids or something similar. You can google search IR extender for options.