Features: It applies to gasoline and diesels vehicles that comply with the OBD-II protocol. This product is a car OBD multi-functional display instrument with a fashionable and compact appearance. It can also display and monitor the battery voltage of the vehicle, the charging voltage of the generator. And provide the of over-speed early alarm, high-temperature alarm and monitoring of the engine. It can read vehicle data streams, scan engine fault codes and offer fault code clearing function. It is easy to operate by connecting to the OBD port of the automobile without cutting the automobile cable. Hardware Features: It adopts 32-bit ARM CORTEX-M3 CPU, with 72MHz maximum working frequency. It supports multiple high-speed vehicle communication protocols, and accurate data. Specification: Working Voltage: DC 10-18V Working Current: