Features: Waveform capture model: with three waveform scanning model, such as automatic/normal/single-shot. One-button automatic waveform capture function. Double protections of automatic measuring ranges and 10A safety tube. Historical data and real-time data is displayed on the same screen. 15 minutes no operations automatic sleep function. Data waveform holding function during measurement, which can store 100 groups of data and 10 waveforms. Specifications: Component:Plastic Size: Approx.77x157x25mm/3.03x6.18x0.98inch Name: oscilloscope multimeter Display: 240x320 color screen Battery: three AAbatteries Static workflow: ≈65mA Continuous use time: more than 10 hours/battery capacity about 65mAh. Observation area: 49x36.7mm Input resistance: ≈ 10μω Automatic sleep: 15minutes or disabled Dormant current: ≈ 35μA. Package Includes: 1 Set Digital Oscilloscope Multimeter note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual coloring of the item. Thanks for your understandings.