Review on Explore the Versatile Features of Qiirun Optical Locator Functions by Dusty Oner

OPM never worked at first. It shows as "LOW" for dBm and NWatt all the time. I just confirmed this by purchasing and testing another power meter with OLS. This should be the simplest measurement but it doesn't work and we tried to contact them in many ways (their website, youtube etc) but never responded.