1、Accurate Data: The power measurement range is ‑70 to +10dbm, relative to the power calculation, with calibration function, can produce faster and more accurate data, very convenient. 2、7 Wavelengths: Seven wavelengths are 850, 980, 1300, 1310, 1490, 1550 and 1625nm, as well as SC, FC, ST adapters. Cover most of the needs of communications engineering maintenance. 3、High Endurance: This optical power meter has a sensitive chip and a sturdy internal structure. The battery consumption is low and can work continuously for 40 hours with high endurance. 4、Easy Carry: This optical power meter does not need to wait for preheating, plug and play, small size, light weight, easy to carry, but also with LED light, very practical. 5、Clear Blue Screen: This optical power meter also has the ability to clear the blue screen. Details mean professionalism, and a clear display of results or information can enhance the user experience.