Features: 1.Purpose: The main purpose of the oil tester is to increase the acidity of lubricating oil and carry out oil quality inspection to ensure the safety of the oil. 2.LED Indication: With LED indicator function, you can clearly understand the quality status of the oil, the last indicator light indicates the quality of the lubricant. 3.High Accuracy and Sensitivity: This engine oil quality detector has high accuracy and sensitivity, with calibration function and accurate test results. 4.Easy to Use: This engine oil tester is easy to operate, plug and play, saving your valuable time and energy, convenient and practical. 5.Wide Application: Oil quality tester is suitable for testing diesel engine oil and gasoline engine oil, by detecting impurities such as oil acid, carbon and water. Specification: Item Type: Engine Oil Tester Material: Metal + ABS Battery: Coin cell CR2032 (not included battery) Power Supply Voltage: 12V Function: 1. Analysis and judgment of oil status and equipment operation status, to provide maintenance recommendations. 2. Oil quality testing, help the supply and demand sides to keep good oil quality, to protect the safety of oil. 3. Lubricant new oil quality testing, to help customers do a good job of acceptance of goods, to prevent the misuse of various types of unqualified and counterfeit and shoddy lubricants. 4. Help both sides of the oil supply and demand dispute clear responsibility. Advantages: 1. Detecting diesel engine oil and gasoline car engine oil, by detecting oil acidity, carbon gum and water, other impurity content, with ten display lights to accurately mark out the quality of engine oil. 2. The device is small and compact, easy to carry, 3. Comes with calibration function, detection accuracy is higher, more accurate. It can effectively determine whether the engine is faulty or not. Application: Universal for gasoline and diesel oil, etc.