Features 10 WAVELENGTHS: This optical power meter can test standard 850 980 1270 1300 1310 1490 1550 1577 1625 1650nm wavelengths. UNIVERSAL INTERFACE: Designed with universal interface, supports for FC SC ST adapter, could cover most requirements of communication engineering. MULTI FUNCTIONS: The meter has the functions of relative power calculation, calibration, high brightness LED light, backlit screen display, etc., very practical. SENSITIVE AND PRECISE: Using sensitive chip, the measurement is fast and accurate, without waiting for preheating, plug and play. LOW POWER CONSUMPTION: The battery consumption is low, and supports more than 120 hours of continuous operation. Specification: Item Type: Optical Power Meter Material: ABS Model: TM570AL Wavelength Range: 800-1700nm Optical Connector: Universal connector (SC FC ST) Interface Type: InGaAs Measurement Accuracy Error: Standard Measurement Wavelength: 850 980 1270 1300 1310 1490 1550 1577 1625 1650nm Display Resolution: Linear display 0.1%, logarithmic display 0.1dBm Identifiable Frequency: 270Hz, 300Hz, 1kHz, 2kHz Power Supply: Lithium battery 3.7V capacity 700mah (built in) Interface: Micro USB Battery Duration: ≥120h (optical power meter function) Automatic Shutdown Time: 10 minutes packing list: 1 xOptical Power Meter 1 x USB Cable 1 x Manual 1 x Lanyard Package List 1 x Optical Power Meter 1 x USB Cable 1 x Manual 1 x Lanyard