Not necessarily a device for professionals in the workshop but ideally suited for a private citizen or amateur hobbyists to "times to the right to see" ... Both read errors and delete, as well as many other data display has immediately work in a Zafira A (EZ 2004) in conjunction with Torque on a Xperia Arc S or with a simple USB Bluetooth adapter on a Compaq 615 Windows 7 64 bit. Occasionally, once a connection is lost. But that is really very rare and for the price you can live with it. For the price / performance ratio's * * * * *