OBDLink Mx wifi

Too expensive for what it is, but that's because there's a lack of secure OBD2 WiFi devices on the market. The OBDLink app is one of the best but lacks documentation. It kept causing my Vauxhall Onsignia to stall, but I eventually found out from searching the web that the app can overload the ECU in the car causing it to crash & stall the engine. So I reduced the polling rate in the app Which seems to have fixed it. As with so many products, a great idea let down by lack of comprehensive help documentation.Has come in useful for DIY diagnostics and General DTCs but cannot show all proprietary Vauxhall DTCs that garage can with specialist equipment. I blame Vauxhall for lack of openness & trying to force people to have overpriced work done at dealers.