TECHNICAL PARAMETERS: Detection range from 0%~4%, error is ±0.3%, detection type contain DOT3, DOT4, DOT5.1
MOISTURE CHANGE MEASUREMENT: The brake fluid tester pen is based on the change of electrical conductivity to measure the moisture change of brake fluid
QUICK DISTINGUISH: The water content is 0%‑4% representing no water and the amount of water content in turn, so that car owners can quickly understand whether the water content of the brake fluid is qualified.