This is a kind of quality oscilloscope, ARM+FPGA+ADC architecture, with 120M bandwidth and 500M sampling rate, more stable and with higher precisions. Widely application on mcu debugging, car repair, home appliance repair, DIY electronic competition, power-supply debugging, inverter, etc. You can have a try. Equipped with 320 x 240 resolution color TFT LCD display, with bright colors and high contrast, you can see the data clearly.      ARM+FPGA+ADC architecture, with 120M bandwidth and 500M sampling rate, more stable and with higher precisions. High bandwidth: Up to 120M bandwidth can easily cope with measurement tests in various fields. Squarewave generator: The upperside of the oscilloscope can output an adjustable squarewave of 3V amplitude, the frequency-adjustment-range is 0-2MHz, the accuracy is up to 0.1Hz. The duty cycle-adjustment-range is 1%-99%.      It can be used to calibrate new probes, drive mosFETs, replace crystals, etc. FFT: FFT is used to convert time domain waveforms into frequency domain and is widely used in harmonic analysis and other fields. Support three display modes: logarithmic, linear, and music spectrum. Reference waveform: Lock the current waveform on the screen, and the normally refreshed waveform will not be affected. Reference waveforms are useful for single-channel oscilloscopes.      With reference waveforms, you can easily compare the waveforms of two channels.Complete trigger: Trig mode: Auto/Normal/Single; Trigger types: Rise/Fall, Trigger level: Manual/Auto. Waveform save/view: One-click to save the screen waveform, enter the waveform preview page, click the thumbnail to observe the full screen, and up to 250 waveforms piecture can be saved. Unwanted waveforms can be deleted.      Export picture to computer: through the USB cable connection, the user-stored waveforms can be exported to the computer(up to 50 at a time). You cancopy it to a computer and use it for the paper material, or send it to others for analysis to find and analyze problems. Detailed analysis: After stopping, you can move the waveform left and right to find the place youare interested in and expand (adjust the timebase) to observe the details and analyze the cause of the problem.            Power-supply: built-in rechargeable lithium battery, 3.7V, 3000mAh large caparity, full-charged can provides long working time.      Name: Oscilloscope      Model: DS01511      Color: yellow      Material: ABS      Hardware solution: ARM+FPGA+ADC      Battery: 1 x built-in rechargeable lithium battery, 3.7V, 2500mAh (included)      Screen: 2.