Goes to show! No Autel staff to be found here. Yes the Stuff they sell is cheaper but to not worth the trouble anymore. The Snap-On tool is TPMSIII is way more @ $1450.00 but will do any sensor regardless where it came from. I was misled to believe that my 501 could program any sensor only to find out that is not the case. Autel support tells me now that only MX Sensors can be used with this tool. So if you are trying to sell a virgin TPMS you will have to tell the customer to get it programmed elsewhere. What a bunch of S... .