Type: car fault diagnosis instrumentSpecification: Voltage:12VMaterial:ABSSize: Approx. 5.5 x 3.5 x 1.5 cm / 2.16 x 1.37 x 0.59 inchesFeatures: Made of high quality ABS material, fireproof shell, ensure use safety.The product is used to monitor the car battery, charging system, starting system.After connecting the device, the battery status can be checked on the mobile phone APP through Bluetooth.With 1.5mA ultra-low power consumption, long service life, good use performance.The auto battery monitor is perfectly compatible with all 12V car batteries.Package Includes: 1 Piece Auto Battery Monitornote: Please allow 1-2cm errors due to manual measurement.Because of the different display of each computer, the pictures may not reflect the actual color of the item.