Luvalley Intl Trade Co., Ltd.

China Manufacturer with main products: Machinery, Equipment, Chemical, Hardware, Fabric, Lighting, Electronics, Auto

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Diagnosis Testing Machine

Export Markets: North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe


We guarantee our diagnosis testing machine at a competive price and high quality. At present, our products have a very good sale in domestic and overweas market.

JW3308 Return Loss Tester is a high 
performance instrument for field use. It
can be used in three different modes as
a return loss meter, optical power/loss
meter and a laser source.

JW3308 Handheld Return Loss Teste
JW3308 handheld return loss tester is used to measure the return loss in the field fiber optic linking, in order to adjust the quality of the optic fiber end-face, and to make sure the fiber optic communication is in good condition. This JW3308 handheld return loss tester can realize measurement of Return Loss, Insertion Loss, Output power, and also can be used as the laser source. Moreover, it has the data storage function of 500 measurement items.
Technical Specification

Return Loss Testing
Plus Width(nm)
Displaying range(dB)
Power Meter
Wavelength Rang(nm)
850 ~ 1650
Calibration wavelength(nm)
850, 1300, 1310 , 1490, 1550 , 1625
Detector type
Displaying Unit
dBm , dB , W
Displaying Range(dBm)
-70 ~+6
Max. Output Power(dBm)
Laser Source
Plus Width(nm)
Max Output Power(dBm)
Stability(dB, 30min)
± 0.05
CW, 270, 1K, 2K
                                        Standard Package  
All JW3308 Models
JW3308 handheld optical return loss tester, 3pcs 1.5V batteries, USB cable, AC Adaptor,FC/APC-FC/APC patch cord, FC/APC-FC/PC reference patch cord, wrap stick,User Manual, CD, Cotton swabs and Soft carrying case.

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