Fiber optic identifier is an essential installation and maintenance instrument which can identify the optical fiber by detecting the optical signals transmitted through them,during this process the fiber optic identifier generate no harm or damage to the fiber cable and it do not need opening the fiber at the splice point for identification or interrupting the service.This fiber optic identifier detects frequency tones at 270Hz, 1KHZ, 2KHZ, when traffic is present on the fiber under test, an audible tone can be heard. In the meantime, it can identify the traffic direction that indicated by LED with illumination.

This fiber optic identifier features core power display of the fibers (-30~+5dBm),low bending loss and high efficient output,easy to replace adaptors,hand held type,portable, compact size ,small weight and easy-to-use, it is a wonderful and much economic tool used in fiber optic network maintenance.

Specifications:
Identified Wavelength Range 900-1650 nm 
Identified Signal Type CW, 270Hz +-5%,1kHz+-5%,2kHz+-5% 
Detector Type Ø1mm InGaAs 2pcs 
Adapter Type Ø0.25 (Applicable for Bare Fiber) 
Ø0.9 (Applicable for Ø0.9 Cable ) 
Ø2.0 (Applicable for Ø2.0 Cable ) 
Ø3.0 (Applicable for Ø3.0 Cable ) 
Signal Direction Left & Right LED 
Optical Power Reading -30 to 5dBm
Signal Frequency 270Hz, 1kHz, 2kHz 
Power Supply One 9V Alkaline battery 
Operating Temperature 0 to +50
Storage Temperature  10 to +70
Dimension (mm) 196*35*30