Feature 1Wide Application: This optical power meter has a wide range of applications and can be used in fiber optic construction and maintenance, fiber optic communication, fiber optic sensing, optical CAT and other fields. 2Built In Detector: This light power meter has a built in detector that keeps it well protected from damage and has a longer service life. 3Multifunctional: This light power meter has a variety of functions, such as automatic shutdown function, wavelength memory function, manual calibration, fiber optic work identification, wide test range, illumination, automatic shutdown, memory wavelength function, work frequency identification, and user's own calibration. 4Supports Multiple Interfaces: This optical power meter supports SC, FC, ST interfaces, which is very convenient and practical. 5Single Chip Microprocessor: This light power meter is controlled by a single chip microprocessor for good performance and full functionality.Item Type: Mini Optic Fiber Cable Tester Material: ABSWavelength Range: 800-1700Probe Type: InGaAsMeasurement Range: -50-+26Uncertainty: 5%Standard Wavelength: 850nm, 980nm, 1270nm, 1300nm, 1310nm, 1490nm, 1550nm, 1577nm, 1625nmDisplay Resolution: Linear Display: 0.1%, Logarithmic Display: 0.01dBmFrequency Recognition: (Hz) 270, 1000, 2000Static Current: 18uA Operating Current: 25mA Endurance Time: 20HCharging Voltage: 5VCharging Current: 500mA Charging Time: 3HAutomatic Shutdown Time: 10minPower Supply: Rechargeable Lithium Battery, External InputBattery: Rechargeable Lithium Battery 400mAh x 1 ( Shipped With Built In Battery ) .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Fiber Optic Power Meter1 x USB Cable1 x Portable Rope1 x Manual