Brake Fluid Tester Universal Car Tester Pen auto Vehicle, 5 LEDs Brake Fluid Brake Oil Tester Moisture Oil Testing tool Vehicle Diagnostic tools

Developed for professional use in automotive repair shops and in servicing.   
5 LEDs to indicate percentage of water in the brake fluid.
Unscrew the brake fluid reservoir, and pull off the cap of the Brake fluid tester.
Dip the test probes into the brake fluid up to the plastic rim of the device, to check fluid quality.
Press the button for power on,green LED will light up,Insert the tester into reservoir for one second then the tester result will be correctly indicated by LEDs.
Warm Tips : 1, After every testing,you need clean the test head with dry cloth or paper. 2,Due to the cause of international air transport, we will not provide the battery.
Operation Instruction :  Operated by a AAA 1.5V battery (Not included)  0% light: battery is OK, no replacement  1% light: moisture content of brake oil less than 1% , brake fluid has a good performance, and ease of use
 Operated by a AAA 1.5V battery (Not included)
 0% light: battery is OK, no replacement
 1% light: moisture content of brake oil less than 1% , brake fluid has a good performance, and ease of use.