1、6 WAVELENGTHS: This optical power meter can test standard 850nm 1300nm 1310nm 1490nm 1550nm 1625nm wavelengths, covering most requirements of communication engineering maintenance. 2、UNIVERSAL INTERFACE: Universal optical interface supports for FC SC ST adapter. The body is ergonomically designed, very comfortable to handle. 3、MULTI FUNCTIONS: The meter has the functions of relative power calculation, calibration, automatic range conversion, battery power display, etc., very practical. 4、SENSITIVE AND PRECISE: With sensitive chip and sturdy internal structure, the measurement is fast and accurate, without waiting for preheating, plug and play. 5、LOW POWER CONSUMPTION: The battery consumption is low, supports more than 100 hours of continuous operation.