Test car brake fluid quality to check whether it’s qulified,Change it when necessary to avoid traffic accident.
Press the button for power on, Dip Half of the metal probe into reservoir for seconds , then the results will be correctly indicated by LEDs .
1%-2% water content indicate the fluid still can be used ,3%-4% shows you need to change new fluid to keep safe-driving.
Product has CE approval .The tester probe is made of High-precision metal material,which is durable and for long use.For safe shipment,battery not included.
After testing,Remember to clean it with dry cloth or paper to keep.Got it in your hand,if any problems,we’re always here to help.