FC/SC/ST Universal USB Fiber Optic Power Meter with Flashlight Description: Universal port: supports three common fiber interfaces SC, FC, ST, connect and work. Seven wavelengths and intelligent memory: Press the button briefly to switch between 7 test wavelengths to meet different test needs. The last test wavelength is automatically saved when the power is turned off. LED lighting: LED flashlight lighting function, easy to check line design in dark environment. USB charging Flash: Mini optical power meter can be easily charged with adapters, laptops, cars and other devices with USB ports, can be used 3500 times when fully charged. Package: Includes optical power meter, USB cable, lanyard and user manual. Specification: Measuring range: -70 to 6dBm Wavelength Range: 8001700 Uncertainty: 5% Display Resolution: Line Display: 0,1%, Logarithmic Display: 0,01 dBm Frequency Identification: 0Hz, 270Hz, 1000Hz, 2000Hz Standard wavelength: 850/980/1300/1310/1490/1550/1625nm Resting current: 18uA Automatic shutdown time: 10 minutes Voltage: 5V Size: 12,5 cm x 3,4 cm x 1,7 cm/4,92 inch x 1,34 inch x 0,67 inch The package includes: 1 optical power meter 1 USB cable 1 leash 1 instruction manual