Brake Fluid Liquid Oil Tester Pen 5 LED Indicator Car Testing Tool for DOT3/DOT4/DOT5

Features:1: The brake fluid tester is suitable for checking the car brake oil quality2: 5LEDs to indicate percentage of moisture in the brake fluid and with more accurately result.3:Insert the tester into reservoir for a second , then the results will be indicated correctly by LEDs.4: High quality to testing DOT 3, DOT4, DOT5 brake fluid5: Automatically power off, it Supports 1 LR03 AAA battery (not included) LED Indicator Display:1.The green LED lights means water content in the brake fluid H2O <1.5%, brake fluid qualified2.The yellow LED lights means brake fluid water content H2O = 1.5% to 3%, can continue to use, test again six months later3.The red LED lights means water content in the brake fluid H2O> 3%, can not continue to use, the brake fluid needs to be replaced4.LED red flashing means battery replacement5.LED yellow means low moisture content, check again in six months6.LED green means brake fluid lines / cell row Technical parameters:Green: Battery OK, that is, brake f