With comprehensive functions and high practicality, targeting people in the maintenance and industries. This device has two major functions: oscilloscope and signal generator. The oscilloscope adopts FPGA+MCU+ADC hardware architecture. It has a sampling rate of 250MS/s, an analog bandwidth of 50Mhz, a built-in high-voltage protection module, and supports a maximum voltage measurement of 400V;supports waveform screens s. Save and view to facilitate secondary analysis. Inside Set up a DDS function signal generator, which can output 12 kinds of function signals. The maximum output of the signal generator is 2MHz, with a step of 1Hz; output frequency, amplitude, and duty cycle Adjustable. It uses a 3.98-inch touch display and a built-in 3000mAh rechargeable lithium battery with a standby time of up to 7 hours. name:Touch Screen Digital Oscilloscope Real Time Sampling Rate:250MHzz Digital Channels:2 Oscilloscope: Channel:Dual channel. Analog bandwidth:50MHz. Real-time sample rate:250MSa/s. Storage depth:Up to 128kByte. Input mpedance:1M. Time base range:10ns/ - 20s/. Vertical sensitivity:10mv/ - 20v/. Time base accuracy:20ppm. Maximum measured voltage:400V. Probe:1x/10x. Bandwidth limitSupport 20MHz limit. Trigger mode:AUTO/Normal/Single. Trigger type:Rising edge, Falling edge. Waveform display mode:XY/YT/Scroll. Coupling method:. Measured data:Period, frequency, -to- value, maximum value, minimum value, Average value, effective value, amplitude, duty cycle, pulse width. Math alculations:1+2,1-2,1*2,1/2,-1,-2,|1|,|2|,. Save waveform screens :Yes. Export waveform images from computer:Yes. Colour:As Shown Material:ABS Package Contents: 1 * Touch Screen Digital Oscilloscope kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.