2L Manual Oil Extractor Pump for Car Engine Maintenance Universal Vacuum Fluid Suction Tool Features： 1、Plug cable in USB Interface when use, or install 4* AAA battery for use. Compact, rugged and easy to use. 2、The systolic pressure, diastolic pressure and pulse show clearly on the LCD Display, it is obvious. And the LED display design ensures clear value for a easy reading for the elderly. 3、It supports 2 person measurement value storage, and 99 groups of data of each person can be recorded, which is convenient for comparison and observation of historical data. 4、High definition colors backlight is easy and convenient for the accurate measurement reading even at night. 5、Arrhythmia monitoring function makes you check your health. Allows you to observe your own heart rate without going to the hospital to measure it. Specification： Features: Professional enhanced tank design,  which is durable and stable. The accurate calibration on the bottle makes you have a easy and clear reading.   quality vacuum gun with powerful suction, ensure much easier to use. High temperature resistance and strength tube, which is transparent, making it convenient to observe the oil pumping. Built-in negative pressure latch, which helps lock the negative pressure and the suction continuously. Sealing design, don't need to about about leakage. Rugged, compact and portable. Applications: automobile, motorcycle, engineering vehicle maintenance. Note: 1.It can be used to pump engine oil, can not pump other corrosive liquid like brake oil and gasoline.           2.Slowly pull back and forth when inserting the pumping tube, stop immediately when comes the obstruction. It is essential for pumping to insert the pipe in place.  Specifications: Name: Manual Oil Change Vacuum Pump Material: PC plastics Capacity: 2L Interface Specifications: 8mm fast connection Pressure Range: up to -300mpa Package size: 26 * 15 * 18cm / 10.24 * 5.91 * 7.09in Package weight: 505g / 1.11lb Packing List: 1 * Set of Manual Oil Change Vacuum Pump Package List： 1 * Set of Manual Oil Change Vacuum Pump