With the ELM 327 V2.1 Bluetooth adapter, you can connect a computer or mobile device to your car and examine the car's soul life, read or acknowledge fault codes. The characteristics of the OBD2 reader depend on the program used. The programs are available both paid and free for a variety of devices. One of the most popular programs is Torgue for Android devices:
The adapter itself is powered by the car's OBD2 port, meaning it works when the car is powered on. Due to its small size, it can be allowed to be in the gate in several cars at all times.
The adapter runs on Android.