US Brake Fluid Tester Pen 5 LED Auto Oil Moisture Diagnostic Tool For DOT3 DOT4
High Compatibility: Supports DOT3, DOT4, and DOT5.1 brake fluid types, making it suitable for virtually all passenger cars, trucks, and SUVs. Step 1: Power on and select your brake fluid type (DOT3, DOT4, or DOT5.1).