Feature: 1. Quickly and easily check the oil and engine condition, detect serious engine problems, save maintenance costs. 2. Suitable for synthetic or standard engine oil, suitable for all diesel or gasoline engines, wide applications. 3. The unique sensor can measure acidity and pollution from soot, dust, dirt, worn metal, fuel, water or antifreeze. 4. 128 x 64 LED display, high definition, clear and intuitive display of information, bring a lot of convenience for your test. 5. With a plastic dropper, it is corrosion resistant, easy to operate. Comes with a black storage box for easy carrying and storing. How to Use: Use a dropper to drop the oil in the engine onto the tester to start the test. Specification: Item Type: Engine Oil Tester Material: ABS Function: Quickly test gasoline or diesel Battery: 3.7V Li Rechargeable Polymer Lithium Battery (built-in), 1000mAh, Reusable Display: 128 x 64 LED display Application: Works with all diesel or gas engines Charger Plug: US Plug 100-240V Size: Approx. 145 x 85 x 20mm/5.7 x 3.3 x 0.8in Package List: 1 x Engine Oil Tester 1 x Storage Box 1 x Dropper 1 x Power Adapter