High-precision Detection Probe Transmittance Display Oil Temp Display. User-friendly Handheld Design 2.8-inch Backlit Screen. In the automotive inspection and maintenance domain, assessing fluid transparency offers crucial insight into its contamination levels and performance condition. This information serves as a guide to determine whether the fluid requires replacement or other forms of maintenance. The AS502 Car Transmission Fluid Tester is specifically designed to evaluate the status of transmission fluid by measuring its transparency. With its distinctive high-precision optical detection probe and LCD display, the AS502 seamlessly detects the presence of impurities, contaminants, or deposits within transmission fluid. It evaluates the cleanliness of the transmission fluid, providing efficient feedback on its quality, health condition, and remaining lifespan. Thanks to its comprehensive features and configurations, the AS502 ensures easy operation and clear numerical displays, facilitating the process of inspecting and maintaining transmission fluid, making it a more convenient task. Note: The main functions of AS502 include measuring the transparency of engine oil in gasoline engines. The measured value reflects the existence of impurities and pollutants in the oil. It can detect impurities produced by mechanical friction of metals. You can directly use the old engine oil for the test. Color: Black. Material: ABS. Package Contents: 1 x Car Transmission Fluid Tester. Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real thing. Measurement allowed error is +/- 1-3 cm.