Features 1、Three in One: Our device is VFL visual fault locator combines fiber optic power meter and light attenuation tester function, three in one, versatile. 2、RJ45 Test: VFL fiber optic power meter light attenuation tester supports RJ45 test, supports linear mW and non linear indicator dBm display at the same time. 3、Universal Interface: Our VFL fiber optic power meter universal interface, supports FC, SC, ST interfaces, supports illumination, supports automatic shutdown. 4、Standard Wavelength: VFL fiber optic power meter has high testing accuracy, fine workmanship, easy to carry, standard wavelength(nm) are 850, 980, 1300, 1310, 1490, 1550, 1625 5、Wavelength Memory Function: This VFL light attenuation tester supports backlight selection, wavelength memory function and user calibration. Specification Item Type: Optical Power Meter Material: ABS Power Supply: 1. AA Batteries x 3 Required(Shipped Without Batteries) 2. USB Cable Power Supply Wavelength Range: 800 To 1700 Detector Type: For InGaAs Measurement Range: -70 To +6 Uncertainty: ±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 Red Light Power(MW): 1, 5, 10, 20 Wireless Module Type: 270, 1000, 2000 Number Of Saved Data(PCS): 20 Input Voltage: 3-5V Operating Temperature: -10 - +60℃ Storage Temperature: -25 - +70℃ Automatic Shutdown Time (Min): 10 Battery Operating Time (H): ≥48 Package List 1 x VFL Light Attenuation Tester Power Meter