1、Wide Application: Automotive battery load tester is universal for all 12V car batteries. Please confirm whether your model is applicable before buying. 2、Convenient Operation: Using Bluetooth to connect the cell phone APP, you can get the battery status data through the cell phone anytime and anywhere, which is more convenient. 3、Plug and Play: Battery load analyzer allows you to test batteries both in vehicle and out of vehicle. Just connect the tester's clips with battery then it will turn on and ready to test and analyze battery. It's that easy! 4、Real Time Viewing: Monitor the voltage of the car starting system and charging system in real time, helping users to have a comprehensive understanding of the data and characteristics of the car battery. 5、Reliability: Through battery tester detection, battery failure can be found in time to ensure the safety of the vehicle on the road and avoid possible accidents.