Flicker can be measured at an ultra-fast sampling rate of 800,000 samples/second in a small, palm-sized housing; JEITA, VESA, RMS, Contrast, etc. can be measured. It can be used for low-luminance measurement, waveform evaluation, and response time evaluation. Low cost and high accuracy. Connecting with PC by only USB cable can be used. There is no better cost-performance ratio than this.