Our Optical Power Meter can test optical power within the range of 800~1700nm wave length. There are 850nm, 1300nm, 1310nm, 1490nm, 1550nm, 1625nm, six kinds of wavelength calibration points. It can be used for linearity and non-linearity test and it can display both direct and relative test of optical power. This meter can be widely used in the test of LAN, WAN, metropolitan network, CATV net or long-distance fiber net and other situations. Functions a. Multi-wavelength precise measurement b. Absolute power measurement of dBm or xW c. Relative power measurement of dB d. Auto off function e. 270, 330, 1K, 2KHz frequency light identification and indication Specifications