O2 is a non-contact bench-top in-line laser diameter gauge using laser diffraction technique with high definition OLED display for high accuract measurement of very fine wire diameter in-line control. It performs excellent accuracy as +/- 0.12µm and repeatability as +/- 0.06µm of the diameter without averaging. All static components inside, no moving parts offers exclusive maintenance free. Insensitive to dirt and vibration, high measurement rates, permanent calibration offers unmatched price and performance.