New Optical Fiber Identifier Komshine KFI-40 Fiber Detector with 10mw VFL Function, LED Display Products Introduction： Upgraded high accuracy fiber identifier KFI-40 integrates VFL and LED lighting function,It is one of the necessary tools for fiber maintenance.Fiber identifier can detect any position of the single mode and multi mode fiber. With the fiber identifier to identify the fiber on the line, you can identify the fiber power and 3 kinds of signal frequencies, and there will be a buzzer sound when identifying the frequency.Display the signal direction via left and right direction light and to make prompt judgment.VFL adopt 2.5mm universal connector and output power is up to 10mW,It can detect fiber break or bending problems within 10km,and it supports pulse and continuous wavelength operation.And it equipped with LED light,convenient for you to work in the dark. Products characters and functions： Universal back clip design,suitable for 0.25/0.9/2.0/3.0 fiber LED backlit display,suitable for various environment and no auxiliary lighting required Testing sensitivity -40dBm to 10 dBm Strong and stable light source, strong penetrating power Be equipped with LED light,more convenient to work in the dark Built-in VFL,2.5mm universal connectors，strong stability，testing distance is up to 10KM Products specification： Model: KFI-40 Wavelength recognition range: 800nm to 1700nm Adapted fiber type: Universal Holder for φ0.25(Bare Fiber),φ0.9,φ2.0,φ3.0 Cable Signal Direction: Left & Right LED Optical Power Reading Range: -40 dBm to 10 dBm Signal Frequency Range: 270Hz,1kHz,2kHz VFL function,BR> Power range: 10mW Testing distance: 8-10km Wavelength range:650nm