Brake Fluid Test Pen (Without Battery)， Yxwen a Testing Pen Car Brake Liquid Tester Accurate Oil Quality Check Pen Tool

Car Brake Liquid Tester Accurate Oil Quality Check Pen Tool
Features:
Brake detection pen is based on the change in conductivity to determine the change brake .
green represents good condition, yellow indicates the state is acceptable but soon replaced.
Red indicates the brake needs replacement
It shows clearly the extent of contained by the light-emitting diode, high content will to lower boiling point, affect braking performance.,
Check Pen Tool
Product Description:
Car Brake Liquid Tester Accurate Oil Quality Check Pen Tool
Material: Plastic
Color: as the picture shows, (Due to the difference between different monitors, the picture may have slight color difference. please make sure you do not mind before ordering, Thank you!)