ELM327 Bluetooth OBD2 car diagnostic interface tool, hardware V1.5, software V2.1 Used to read diagnostic trouble codes, both generic and manufacturer-specific, and displaying their meaning. Test a lot of trouble of the car and display the current sensor data. Support all OBD-II protocols, work with all OBD-II compliant vehicles. Bluetooth diagnostic scan tool is super mini design for convenient to use. Specifications General Voltage: 12V Color: Blue Material: Plastic Specifications Adaptable automobile mode : Works with all OBD-II compliant vehicle Data measurements: OBD II repair information Output Protocol: Bluetooth Dimension and Weight Product weight: 0.045 kg Package weight: 0.1 kg Product size (L x W x H): 4.8 x 3 x 2.5 cm / 1.9 x 1.2 x 1 inches Package size (L x W x H): 12 x 8 x 3 cm Package Contents: 1 x ELM327 Diagnostic Tool, 1 x CD