2X OBD2 ECU Connector Battery Saver Auto ECU Memory Savers Automotive Emergency Electrical Plug Car Save B

Easy to carry, convenient and safe to use.
After replaced the storage battery, release the red clip of the tool, if the tool is still beeps, it means you have replaced the battery successfully, if no voice, indicating fuse burned.
Using this simple tool when replacing your car battery will help you these problems.

Colour:B:black
Material:plastic
Package Contents:
2 x Detection tool

Only the above package content, other products are not included.
Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.