Crisp and Portable---Crisp and bright 3.5 inch color LCD screen, showing a higher resolution larger character display, even though in dim ambient light situations or outdoor environment, digital oscilloscope can be intuitive in its read. This handheld oscilloscope is portable and comfortably fits in the hand. It is much lighter, easier and perfect for field use. Practical and intuitive menu page layout, it is intuitive and handy in its useMultipurpose---HDS272S oscilloscope perform fine part for troubleshooting in the field. Wide usage, it can be practical in automotive diagnostic job to detect the injectors and ignition coils or other; discover intermittent DC voltage drops or issues with industrial equipment and sensors; experimental course for school educational; other range in heavy electrical, low voltage prototyping, delicate repairs and so onExcellent battery life---Power by standard 4400mAh 18650 Lithium battery, portable oscilloscope can work continuously for about 6 hours, a single battery can supply power normally, which are easy to charge or purchase to replace, convenient for your work anytime and anywhere