Brake fluid tester pen, oil moisture detector, automotive diagnostic tool

General Description: The brake fluid tester pen is an automotive diagnostic tool designed to measure the moisture content of brake fluid. Thanks to its electrical conductivity-based detection technology, it allows vehicle owners to quickly check brake fluid quality, ensuring safe driving. Technical Specifications: Detection Range: 0% to 4%; Error: ±0.3%; Detection Types: DOT3, DOT4, DOT5.1; Material: ABS; Power Supply: 2 x 1.5V AAA batteries (not included); Operating Temperature: 0~40℃; Storage Temperature: -10~50℃; Humidity: ≤95%; Altitude: ≤2000 meters; Compatibility and Accessories: Compatible with DOT3, DOT4, and DOT5.1 brake fluids; Package List: 1 x Brake Fluid Tester, 1 x Manual Instructions for Use: To use the tester, simply immerse the probe in the brake fluid and read the displayed moisture level. A moisture level of 0% to 4% indicates the fluid's quality, allowing for a quick assessment of its condition. Other Information: Shock and scratch resistant thanks to its ABS material. Designed to be environmentally friendly.