Mainly used for optical power measurement. Support 850/980/1310/1490/1550/1625nm wavelength, with measurement range -60~8dBm. Features: Support 6 wavelengths: 850/980/1310/1490/1550/1625nm wavelength, and show on the LCD screen at the same time. Compact size with simple interface and operation button, easy to use. With a built-in RJ45 cable tester, which is detachable, making it convenient to use. The RJ45 cable tester can automatically scan and test whether the network cable order is correct. Can be used for various types of optical interface, such as FC, SC, ST. Equipped with 700mAh battery for long working time and LED light for illumination in the dark. Specifications: Material: ABS Wavelength: 850/980/1310/1490/1550/1625nm Measuring Range: -60~8dBm Accuracy: 850/980nm0.5dB Battery capacity: 3.7V, 700mAh Item Size: 115*45*25mm / 4.52 * 1.77 * 0.98in Item Weight: 120g / 4.23oz Package Weight: 150g / 5.29oz Package Size: 12.8*7*3.5cm / 5.03 * 2.75 * 1.37in Packing List: 1 * Optical Power Meter 1 * RJ45 Remote Adapter 1 * Charging Cable 1 * User Manual (English)