Feature:1. Fast and Accurate: The multifunctional optical power meter has a built in sensitive chip for accurate measurement results and quick response.2. Strong Functions: Multifunctional optical power meter with relative power calculation and calibration function, stable performance.3. 10 Wavelengths: Can measure 850, 980, 1270, 1300, 1310, 1490, 1550, 1577, 1625, 1650nm wavelengths, covering most of the needs of communications engineering maintenance.4. Clear Display: The power meter's clear on screen display allows you to take clear readings, both in low and bright light.5. Automatic Power Off: This optical power meter will automatically shut down after 10 minutes of no operation, reducing power consumption and extending service life.Specification:Item Type: Optical Fiber Power MeterMaterial: ABSWavelength Range: 800-1700nmOptical Connector: Universal connector (SC/FC/ST)Connector Type: InGaAsPower Measurement Range: -70-+10dBmMeasurement Accuracy Error: <5%Standard Wavelength: 850, 980, 1270, 1300, 1310, 1490, 1550, 1577, 1625, 1650nmDisplay Resolution: Linear display 0.1%, logarithmic display 0.1dBmIdentifiable Frequency: 270Hz, 300Hz, 1kHz, 2kHzPower Supply: Lithium battery 3.7V capacity 700mah (built in)Interface: Micro USBBattery Duration: Greater than or equal to 120 hours (optical power meter function)Automatic Power Off Time: 10minRed Source Function: Working Wavelength: 650nm30nmWorking Mode: CW, 1Hz, 2Hz.Package List:1 x Optical Fiber Power Meter1 x USB Cable1 x Instruction1 x Lanyard