Fangrui Product Details Bnc Interface, Suitable For General Oscilloscope Probes Ac And Dc Coupling Can Be Switched, And 1:1 And 1:50 Attenuation Ratios Can Be Switched Self-contained Square Wave Signal Output, Duty Cycle, Frequency, And Enable Are Adjustable, Output Amplitude Is 3.3v, Output Frequency Range Is 1khz~8khz, And Output Duty Cycle Range Is ~ 10bit Resolution, 1mhz Sampling Rate, Signal Measurement Range Is 1khz~100khz (sample Code, If A Larger Measurement Range Is Required, The Sample Code Can Be Modified For Secondary Development.) Type-c Interface Power Supply With 1.8-inch Tft Color Display, Onboard Power Indicator, Pwm Output Indicator Output Frequency Range: 1khz~8khz Output Duty Cycle Range: ~ Resolution: 10bit Sampling Rate: 1mhz Signal Measurement Range 1khz~100khz Colour:blue Material:pcb Package Contents: 1 X Simple Oscilloscope 1 X Detection Cable Only The Above Package Content, Other Products Are Not Included. Note: Light Reflection And Different Displays May Cause The Color Of The Item In T