JW3109 Portable Optical Light Source Wavelengths 1310/1550mm
SKU: 12131660358

JW3109 Portable Optical Light Source Wavelengths 1310/1550mm

$145.10 $161.22
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Description

JW3109 Portable Optical Light Source Wavelengths 1310/1550mmPart Number: JW3109 Application: For JW3109 optical light source can provide 1 to 4 output wavelengths to meet specific requirements, including the 650nm red source and the 1310 1550nm wavelengths for single mode fiber or the 850 1300nm wavelengths for multimode fiber, as well as other wavelengths according to customer needs. Together with the JW3208 optical power meter, it is a perfect solution for the fiber optic network characterization.

Part Number:

JW3109

Application:

For JW3109 optical light source can provide 1 to 4 output wavelengths to meet specific requirements, including the 650nm red source and the 1310/1550nm wavelengths for single mode fiber or the 850/1300nm wavelengths for multimode fiber, as well as other wavelengths according to customer needs. Together with the JW3208 optical power meter, it is a perfect solution for the fiber optic network characterization.
FeaturesProvides 1~4 output wavelengths which can be optional according to customer's needs. CW, 2Hz modulation output at 650nm, and CW, 270Hz,1KHz,2KHz modulation output at other wavelengths.High stability of the output power.Stable output wavelength.Backlight LCD display supports night operation.Compact size and decent appearance.Large LCD, easy operation.Alternative 10 minutes Auto-off function conserving battery life.

Specification:

:FP-LD,LED or others please specify¡¡Typical Output Power (dBm) 0 -7dBm for LD, -20dBm for LEDSpectral Width(nm):¡Ü10Output Stability :¡À0.05dB/15mins; ¡À0.1dB/ 8hoursModulation Frequencies CW,2Hz CW,270Hz,1KHz,2KHzOptical Connector FC/ universal adaptor FC/PC Power Supply:Alkaline Battery(3 AA 1.5V batteries)Battery Operating Time(hour):45Operating Temperature(¡æ) :-10~+60Storage Temperature(¡æ):-25~+70Dimension(mm):175x82x33Joinwit RecommendationJW3109 Handheld Light Source is designed for optimal use with JW3208 Optical Power Meter for measuring optical loss on both single mode and multimode fiber cable

Type:

JW3109A, JW3109B, JW3109C, JW3109DWavelengths(nm):650, 850/1300, 1310/1550, 850/1300/1310/1550Emitter

Shipping Notes
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
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SKU: 12131660358

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4.3 ★★★★★
Based on 223 reviews
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Verified Purchase
Megan
Phoenix, US
★★★★★ 5
So tiny, so elegant
Color: Gold Harlow, Size: 16MM, Color: Gold Harlow, Size: 16MM
This ring is so elegant and beautiful. It is tiny, so if you don't have the best eyesight, this will not work for you. The band fits snugly on my size 7 ring finger. I love the shape of this ring so much. It seems like really good quality and has kept time accurately so far. Definitely worth the money, in my opinion
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 1, 2026
A
Verified Purchase
Alison M
Lowell, US
★★★★★ 5
So fun! Bold, and cute.
Color: Gold/Black, Size: 15MM, Color: Gold/Black, Size: 15MM
I'm going to write a review right away so I can't comment on if it keeps perfect time as I just got this watch ring 90 mins ago. But first impression - AWESOME! So comfortable for me, seems very well made and it is definitely keeping time for my tiny time I've had it. I am very hopeful it is going to be sturdy and last and the battery does well. A really stylish fun way to keep track of time and have a statement piece.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 18, 2026
R
Verified Purchase
Ruby L.
Massapequa, US
★★★★★ 5
Unique watch for sure
Color: Silver, Size: 15MM
So good, so cute. The face is pretty small but what do you want from a ring watch? I would say it is not for bigger fingers. I wear a size 7.5 and it fits perfectly. It does have an elastic band but when I tried it on a larger finger, it definitely pinched. I am of fan of different watches so this fits the bill. It's unique and an eye-catcher. Well done Fossil.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 7, 2025
A
Verified Purchase
Amazon Customer
Charlottesville, US
★★★★★ 5
Pretty. Tiny. Hopefully has good battery life. UPDATE: The silver one was defective.
Color: Gold Raquel, Size: 14MM, Color: Gold Raquel, Size: 14MM
I bought both the gold and the silver ones. I have a collection of ring watches but most of them are sets you can buy for cheap. These are my first made by a well known watch company. They look big on picture but they are tiny. I bought it so when my smartwatch dies I have one on my ring to tell the time. I don't like going on my phone to check the time just to avoid distractions. I hope the battery lasts long. Updated review: I started using the gold one and it works great! The silver one wasn't working so I processed a return for it. However when they shipped the replacement, there was nothing inside the tin can fossil case. I called Amazon and they refunded me for the silver one. The product works great. I probably got a defective one. My fear is maybe someone took the ring before packing it for replacement. That's just wrong. I'm going to get the silver one from Macy's instead.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 13, 2024
S
Verified Purchase
Ss in calif
Fort Morgan, US
★★★★★ 5
Worth the money
Color: Gold Glitz, Size: 15MM
Beautiful watch ring. Looks more expensive than what the price. Very nice.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 12, 2026

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