Miscellaneous

FNIRSI 138Pro Multifunction 2.4-Inch Display Digital Oscilloscope One Button Auto Adjust PWM Square Waves Output Features Portable Oscilloscope Compared with traditional oscilloscopes this oscilloscope with smaller size and more suitable for carrying around One Button Auto Adjust One button AUTO setting all parameters and quick waveform measurement Long press... FNIRSI 138Pro Multifunction 2.4-Inch Display Digital Oscilloscope One Button Auto Adjust PWM Square Waves Output