A car scanner is a multifunctional device that can read and reset errors, display various vehicle parameters in real time, such as engine temperature or RPM. Thanks to the support of 9 diagnostic protocols, the scanner is compatible with most cars. The device is equipped with a backlit LCD, on which it is convenient to read the readings. The scanner is powered directly from the car's diagnostic socket, so no batteries are required. The cable is 2.5 feet long and has excellent flexibility for comfortable connection in hard-to-reach places. There are 6 control buttons on the body, but it is worth noting that the scanner only works with the on-board OBD2 system to read engine errors.