Feature: 1. Detects Acid Increase in Lubricating Oil: This gas analyzer is designed to specifically detect the increase in acidity of lubricating oil. Over time, as lubricating oil is used, its acidity gradually rises, leading to the erosion of engine components. 2. Easy-to-Use Testing: With a simple testing process, this automobile car oil quality tester provides accurate results. If the test result shows a flashing red LED with the number 10, it typically indicates that the lubricating oil has reached an unacceptable lower level of acidity. This serves as an indication for the need to replace the lubricating oil. 3. Protects Engine Components: By monitoring the acidity level of the lubricating oil, this motor engine detector helps prevent damage to engine components. Regular testing and timely oil changes can the and optimal performance of the engine. 4. Cost-Effective Maintenance: By detecting the acidity level of the lubricating oil, this car oil quality tester allows users to identify the optimal time for oil changes. This helps avoid unnecessary oil changes, saving both time and money on maintenance costs. Long-Term Engine Health: By promptly identifying and addressing the acidity increase in lubricating oil, this digital car oil tester contributes to the long-term health of the engine. It helps maintain the efficiency and reliability of the engine, ultimately extending its lifespan and reducing the risk of costly repairs or replacements. Specification: Power supply voltage: 12V Detection system: oil quality Working temperature: -30~75 Color: Red Material: Plastic Different batches have different printing characters. Do not use it with care. Package Contents: 1 x Car Oil Quality 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 a little different from the real thing. The measurement allowed error is +/- 1-3cm.