ecocstm Brake Fluid Tester, Brake Fluid Moisture Tester, Brake Fluid Liquid Tester Pen with 5 LED Indicators, Auto Brake Diagnostic Checker Tool for DOT3 DOT4 DOT5.1 Brake Fluid

Quality Materials: The frosted plastic housing provides excellent anti-slip performance, while the high-strength, abrasion-resistant nylon material ensures that brake fluid tester maintains good performance and extends its service life under frequent use or harsh environments

Portable Design: The automotive brake pen is compact and lightweight, no cable connector design, easy to carry, will not take up much space. Only one AAA/1.5V battery is required (not included)

Widely Used: The car brake tester is suitable for GM vehicles and a wide range of brake fluid types, capable of checking the condition of DOT-3, DOT-4, DOT-5.1 brake fluids and most synthetic brake fluids, ideal for professional inspections, workshops, garages and home use

Easy to Read: The automotive brake fluid tester is equipped with five LEDs and a metal probe that is fully immersed in the brake fluid during the test, making it easy to accurately display the percentage of water in the brake fluid. When multiple LEDs are illuminated, the maximum reading is the final result

Easy to Use: This brake fluid liquid tester is easy to operate, just press the top button and dip the probe into the test point to quickly test the water content of brake fluid. Note that metal additives in the brake fluid may cause the red light to come on