Re: Raspberry Pi Starter Pack and USB WiFi (802.11b/g/n) Module with Antenna for Raspberry Pi
I don't think so. There's a 'Site Survey' mode which you can use with the management software, but the searching I've done in general says the Realtek drivers don't support monitor mode.
When you void a product warranty, you give up your right to sue the manufacturer if something goes wrong and accept full responsibility for whatever happens next. And then you truly own the product.