I just bought a tech2 as well, came from obd2eshop.com. Came out to $347 shipped. Was a bit expensive but it was the cheapest option I could find, AND I had it in less than a week. Ordered it last Sunday night, it shipped out Tuesday, and DHL said they would deliver it the following Tuesday, a week time frame. I thought that’s fair. Not too long on shipping. It showed up three days later, last Friday! I’ve tested it out. I’m confused on the TIS2000 software as well. It wouldn’t download to my laptop. Also, what does the CANDi module do?