We've recently acquired a Rainwell scan tool for testing, and I must say that it is a rather crude device. I may post some pictures later, that show the sloppy solder work.
The ELM327 clone that's used as a basis for the scan tool has strange bugs, and does not connect on any protocol other than ISO9141-2. What's even worse, from a consumer's point of view, is that the hardware itself
does not support the other protocols. In other words, if you replace the Rainwell chip with a genuine ELM327, it still only connects to ISO9141 ECUs.
Rainwell is not a company I would trust with my money. They stole the ElmScan 5 and ElmScan 5 USB trademarks, which are property of ScanTool.net, LLC. If that wasn't enough, the content of the RainWell website has been taken almost verbatim (as CanDoo has pointed out), from the ScanTool.net website.
Real ElmScan 5 and ElmScan 5 USB
scan tools are sold in the thousands, and each one is thoroughly tested before it is shipped to the customer. A great deal of emphasis is placed on identifying and fixing problems in the field, and any problems reported by customers are quickly investigated and acted upon. Since its introduction in late 2005, the ElmScan 5 went through five hardware revisions. The ElmScan 5 USB scan tool, which is based on the ElmScan 5, went through four revisions.
In the unlikely event you experience a problem with your scan tool, you can rely on the technical expertise of our engineers. Chances are, the company that sold you a clone lacks this expertise, and its personnel may not even speak your language.
When you buy your scan tool from ScanTool.net, LLC or one of its authorized distributors
, you can be confident that you are getting the best value for your money.