Car Brake Fluid Tester Pen with Corrosion Resistance Probe, Vehicle Brake Fluid Liquid Diagnostic Testing Tool, Auto Oil Moisture Analyzer, Compatible with DOT3 DOT4 DOT5.1

Material: PP, Metal Color: black Size: 6.1 × 1.18 × 0.98 inches Package Size: 3.05 x 0.59 x 0.49 inches Weight: 30g/1.06oz Part Number: HAMOJUF-Car2 Quantity: 1 Operating Current: 11-46 mA Standby Current: 22 µA Operating Coltage: 1-1.5 V Features: -1.This product provides intuitive feedback on brake fluid moisture content via a three-colour light and audible alerts, with clear status indicators corresponding to different ranges. -2.The product boasts a stable and reliable construction, capable of withstanding minor knocks and friction during daily use, and is resistant to deformation or damage even with prolonged use.

• High Quality Material: The main body of this product is made of PP, whilst the probe is made of metal. PP possesses stable physical properties, ensuring the product retains its shape and structural integrity. The metal probe offers good electrical and thermal conductivity, enabling the transmission of detection signals and ensuring the accuracy of test data, thereby providing a solid foundation for long-term, reliable use.
• Wide Ranging Application: Measuring 6.1 × 1.18 × 0.98 inches, this product's compact design makes it easy to carry and operate. It is compatible with the brake fluid reservoirs of the vast majority of passenger cars and supports testing of mainstream brake fluid types including DOT 3, DOT 4 and DOT 5.1, meeting the testing requirements for different vehicle models and brake fluid specifications. It serves as a versatile maintenance tool for motoring enthusiasts.
• Easy to Install: To use, unscrew the brake fluid reservoir cap, press the power button lightly, and once the screen lights up, press and hold for 3 seconds to enter the brake fluid type setting mode. To switch types, hold the button for 3 seconds until the type display flashes, then press briefly to select the desired DOT rating. Subsequently, immerse the front metal probe parallel to the brake fluid to begin testing.
• Smart Detection: When the moisture content of this product is below 1.5%, the indicator turns green, indicating that the brake fluid is in good condition and safe to use. When the moisture content is below 3%, the indicator turns yellow, indicating that performance is good but that regular retesting is required. When the moisture content exceeds 3%–4%, the indicator turns red and an audible alert sounds, warning that the brake fluid must be replaced immediately.
• Side Clip: This product features a side clip design, allowing it to be easily attached to a tool kit or in-car storage compartment. Its compact size takes up minimal space, making it convenient to carry in the car for testing at any time. Furthermore, it requires only a single AA battery for power, which supports long-term use without the need for frequent replacement, enhancing convenience.