Features 1、EASY TO USE: High testing accuracy, fine workmanship, easy to carry, providing more convenience for your work, more power saving and time saving. 2、MAIN FUNCTION: Optical fiber power meter can be used to determine whether the emission mode during the process is continuous or intermittent. 3、ABS SHELL: Plastic shell provides protection for the instrument, reducing the damage to the machine caused by collisions and accidental falls to a certain extent. 4、MULTIFUNCTIONAL: Supports lighting, automatic shutdown, backlit, wavelength memory function, and user calibration. 5、WITH LED LIGHTING: The bright LED flashlight function of the fiber tester can easily cope with dim environments and achieve efficient construction. Specification Item Type: Optical Fiber Power Meter Mode: G9 Y10 Material: ABS Wavelength Range: 800 to 1700 Detector Type: For inGaAS Power Measurement Range: -70 to +10 Error: ± 5% Standard Wavelength (nm): 850, 980, 1300, 1310, 1490, 1550, 1625 Display Resolution: Linear Display: 0.1% Logarithmic Display: 0.01dBm Red Light Working Wavelength (nm): 650 Frequency Identification (HZ): 270, 1000, 2000 Number of Saved Data (pcs): 20 Working Temperature (℃): -10 to +60 Storage Temperature (℃): -25 to +70 Automatic Shutdown Time (minutes): 10 Power Supply Battery: 1 x lithium ion battery 800mAh (built in carrying) Charging Voltage: DC 5V Package List 1 x Optical Fiber Power Meter 1 x Charging Cable 1 x Manual