Autoloc popper and alarm

what does everyone think about this: http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=2450376128&category=6763

i thought that was really cheap. i was acually expecting to spend around 500 for the both of them together, does anyone know what they usually retail for? and its for an s10, so will 35lb be enough?