Specially designed for checking the moisture content in brake fluid. Comparative electrolyte-type tester which passes current through the fluid and measures any resistance present. Simple to calibrate, very easy to use and read with an audible test cycle. Adjustable test probe for easy access. Uses 1 x 9V battery (not included).
LED Green-color indicator flashes indicates good brake oil quality.
LED Yellow-color indicator flashes indicates bad brake oil quality.
LED Red-color indicator flashes or beeping alarm indicates brake oil quality is danger.