4pcs Brake Fluid Tester Pen Automotive Diagnostic Tool Vehicle Liquid Tester with 5 LED Mini Indicator Suitable for home and travel

Suitable for home and travel use

create a unique appearance and wonderful hand-feelings

Color: As shown

features its reimagined squonk system and inbuilt refillable e-liquid bottle of 7

4pcs Brake Fluid Tester Pen Automotive Diagnostic Tool Vehicle Liquid Tester with 5 LED Mini Indicator Suitable for home and travelProduct Features: Operation Guideline: 1. Unscrew the brake fluid reservoir, and pull off the cap of the Brake fluid tester pen. Dip the test probes into the brake fluid up to the plastic rim of the device. 2. 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. Repress the button for power off. The tester will automatically power off after