Just thought I would pop this info I have found out on diagnostic tools, I bought a ELMS327 1.5 off ebay and could not get it to work properly, then I decided to do a bit of investigating and went to the Elms site only to find that they have never made the versions 1.5 or a 1.4a, however they do make a 1.4b they say that the other's are clones of their equipment, anyhow I sent it back to the supplier asking for a 1.4b which is made by ELMS, explaining what I have just discovered on the site, he promptly gave me a refund and has never contacted me since.. So the outcome is that I am still on the lookout for a 1.4b (GENUINE)... Anyway I just thought I would make you aware of what you may be buying...Kindest Regards Fred