Universal On-Board Diagnostics Car Computers ECU Memory Auto Emergency ECU Battery Saver Battery Replacement Accessory Car Battery Change Safety Tool

Features:
Bright screen, the battery is connected correctly with the positive and negative terminals otherwise it is not bright.
This detection tool has battery clip anti-reverse protections (the digital tube does not light after the reverse connection, no power).
It can display the current (can be used for electric leakage detection, can also know the quiescent current of the car in the non-start state.
It can display the battery voltage (to prevents the use of batteries that are deficient in electricity, can not reach the purpose of continuous battery replacement.
Voltage and current are automatically cycled with 5 amp insurance. And there is a power management system with a core processor.