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Description
The GFI Live Fiber Identifier allows you to detect traffic and measure signals anywhere onsinglemode fibers without having to disconnect them . It also lets you check for signal presence before rerouting or maintenance , perform continuity tests and verify cable labeling.
Based on non-destructive macrobending technology,the GFI doesn't disrupt traffic,damage or overstress the fiber,enabling efficient,accurate and reliable data acquisition.

Features
? Indicate the signal directions in fiber
? Indicate the signal presence or absence(Live ordark fiber)
? Detect tones 270Hz, 1kHz and 2kHz to verify the modulated signal type
? Handhold design
? Build in VFL 1mw or 10mw optional
? Battery low indication
? Powered by 2 units of 1.5V AA batteries
? One-year warranty and Three-year recommended calibration interval

Specification

Optical Fiber Identifier - GFI Parameter
Model	GFI-400	GFI-420S		GFI-420L
Wavelength Range	800 to 1700nm (SM)
Recognizable Signal Type*	CW, 2kHz, 1kHz, 270Hz +/-10%
Detector Type	InGaAs 2pcs
Fiber Type	0.9, 0.25, 2.0, 3.0 mm fiber
Sensitivity	+10 ~ -50dBm
Accuracy *	+10dB to -30 dBm (Continuous Wave) /+10dB to -25 dBm (Modulated Signal)
LED Indicator	Signal direction; signal frequency (2kHz/1kHz/270Hz); low battery
Visual Fault Locator	N/A		1mw		10mw
Power Supply	AA * 2
Size(H*W*D)	230mm *45mm * 45mm
Weight	About 200g
Storage Temperature	-20  to  +70?  ,<90% RH
Operating Temperature	-10  to  +50?  ,<90% RH

*at 20.3 degrees,indoor,1550nm wavelength,0.9mm fiber, with white coat,270Hz,error < 5%
*0.25,2.0,3.0mm fiber,the performance at continuous wave will be lower
*1KHz,2KHz,the performance at modulated signal will be lower
*at 1310nm wavelength,the performance will be lower

Standard Package
?GFI main body*1
?Nylon bag and the Q/C certificate*1
?Operation Manual*1
?Paper Box

Ordering Information
GFI-X
(1)GFI-400: Standard Live Fiber Identifier
(2)GFI-420S: Standard Live Fiber Identifier With 1mw VFL
(3)GFI-420L: Standard Live Fiber Identifier With 10mw VFL