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Description
Fiber Optic JW3216A Handheld Optical Power Meter Tester -70 ~ +6dBm USBFiber Optic JW3216A Handheld Optical Power Meter Tester 70 ~ +6dBm USB Part Number: JW3216A,3216A Introduction: JW3216 Handheld Optical Power Meter is a newly designed fiber optic tester, which aims at the installation, engineering acceptance and maintenance of fiber network. Compared with other usual power meters, the JW3216 has more functions, like automatic wavelength identification, auto wavelength switching, intelligent backlight, data saving via
Fiber Optic JW3216A Handheld Optical Power Meter Tester -70 ~ +6dBm USBPart Number:
JW3216A,3216A
Introduction:
JW3216 Handheld Optical Power Meter is a newly designed fiber optic tester, which aims at the installation, engineering acceptance and maintenance of fiber network.
Compared with other usual power meters, the JW3216 has more functions, like automatic wavelength identification, auto wavelength switching, intelligent backlight, data saving via USB port.
Combined with JW3116 handheld optical light source, it offers a quick and accurate testing solution on both SM and MM fibers.
Feature:
Wave ID Auto wavelength identification & switching
Frequency ID ---Auto frequency identification
2 types of backlight modes, manual or outside light intensity, which indicated by LED light red or blue color.
Intelligent backlight
1000 records storage or download via USB cable
USB communication port for saved testing records download
Reference power level can be set up and stored
User self-calibrating function
Auto-off function
Up to 200hrs battery life
Specification:
Calibration Wavelength£¨nm£©:850¡¢1300¡¢1310¡¢1490¡¢1550¡¢1625
Detector type:InGaAs
Measurement Range£¨dBm£©:-70¡«+6
Uncertainty(dB):¡À0.15£¨3.5%£©
linearity (dB):¡À0.02
Display resolution(dB):0.01
Frequency ID£¨Hz£©:270,330,1K,2K
Wave ID£¨nm£©:850¡¢1300¡¢1310¡¢1490¡¢1550¡¢1625
Date Storage Capacity:1000
Communication Port:USB
Connector:FC£¬SC£¬ST
Alkaline battery:3*AA£¬1.5V
Power Adapter(V):8.4
Battery Operating time(h):200
Operation Temperature(¡æ):-10¡«+60
Storage Temperature(¡æ):-25¡«+70
Calibration Wavelength£¨nm£©:850¡¢1300¡¢1310¡¢1490¡¢1550¡¢1625
Detector type:InGaAs
Measurement Range£¨dBm£©:-70¡«+6
Uncertainty(dB):¡À0.15£¨3.5%£©
linearity (dB):¡À0.02
Display resolution(dB):0.01
Frequency ID£¨Hz£©:270,330,1K,2K
Wave ID£¨nm£©:850¡¢1300¡¢1310¡¢1490¡¢1550¡¢1625
Date Storage Capacity:1000
Communication Port:USB
Connector:FC£¬SC£¬ST
Alkaline battery:3*AA£¬1.5V
Power Adapter(V):8.4
Battery Operating time(h):200
Operation Temperature(¡æ):-10¡«+60
Storage Temperature(¡æ):-25¡«+70
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
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- Delivery to the USA:
- Standard Shipping : 3-10 business days
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 17 reviews
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Product Reviews
★★★★★ 4
Overall good frother
Color: Black
Bought the Maestri and the Zulay frother to test which one is better since both had good reviews. Returned the Zulay (see Zulay review) and kept the Maestri. Been using it for a few days now and works well. Mixes chai and hot chocolate well. It has one speed that is a good speed to mix, but not so fast that it causes the drink to spill over the top as long as the cup is filled to about 80% full. Because I tend to use the tall 20 oz Contigo autoseal cups, it could benefit from offering longer attachments to reach the bottom of the cup (note: that I did not find any company that offers longer attachment arms).
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Reviewed in the United States on January 28, 2026
★★★★★ 5
LOVE this frother and the creamy results!
Color: Black
I LOVE this gadget! And I'm not a gadget person.
Since I got it a few days ago, I've switched from using my Nespresso coffee maker, which uses pods and which I really like, to using Starbucks instant coffee packets (cheaper and more environmentally friendly than pods). I put a packet of the coffee and two packets of Equal in a cup, add half and half, then use this frother to mix them. Within a few seconds -- no more than 5, if that -- I have a thick mound of creamy froth. Then I had the water to finish making the coffee. Fantastic. This thing is so easy and fun to use.
This is not the cheapest frother available. I wanted a rechargeable unit that has sufficient power to make nice, creamy froth. Also, I didn't want to spend $10 and have the thing break and have to replace it. Reviews suggest the cheaper ones are fine if you don't regularly use a frother. I never used one before and didn't really think I would use it very often. But I like it so much, I've been using it twice a day.
Also, I first saw one in use while traveling in India. Another guest at my small hotel had one, which she used to make a latte with rather than drink the rather tepid offering at the more tea-oriented hotel. That's when I decided to get one. I'll be taking it on future trips. Some come with travel containers; this one didn't.
The only learning curve was making sure the cup or pitcher for the cream is deap enough not to splash out the cream. I think I'm actually using a little less cream than I used to because the volume increases so much. I use cold cream, not heated (I used to heat it in the microwave when I was using the NesPresso.) I find I like the initial contrast with the cold cream at the top, then I stir it down into the coffee. The Starbucks coffee is excellent. I've used it for iced lattes in the past, so I knew it was good. I can hardly wait for a heat wave to make them with this frother.
I did try to beater attachment in eggs when I was making an omelet. Not worth the trouble -- first, the bowl I was using to beat the eggs was too shallow and egg got all over. Second, a fork works just as well. If I were whipping cream, I would definitely use it.
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Reviewed in the United States on March 7, 2026
★★★★★ 5
Best frother ever
Color: White
This brother is wickedly powerful you don't need to use it for very long to get phenomenal frothing results
Incorporates ingredients quickly
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Reviewed in the United States on April 16, 2026
★★★★★ 5
Works great and so much fun!
Color: Black
How did I live without this for so long? I love this little gadget! It gets used multiple times a day. It's not only great for frothing milk but it will whip eggs for a recipe and stir other ingredients as well. People who have complained that the stirring attachment was missing a piece did not read the description. The picture clearly shows there is no "boot" on that attachment, you don't want that one to spin like the frother. The Frother holds a charge for quite a while as well. I use mine multiple times a day and it is still holding a charge after weeks of daily use. Great item!
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Reviewed in the United States on February 15, 2026
★★★★★ 3
Disappointed
Color: White, Color: White
Powerful, but the description differs from the actual specifications, and the speed cannot be adjusted.
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Reviewed in the United States on March 15, 2026