Pay in installments of $50.12 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Aug 3 - Aug 8
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
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.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
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
4.3 ★★★★★
Based on 18 reviews
Sort
Product Reviews
★★★★★ 5
Great wrist rest with a modern look!
Color: Walnut Wood, Size: Medium, Color: Walnut Wood, Size: Medium
This is a great looking addition to my desk. It’s a just the right length to fit my keyboard and I love the walnut coloring! It’s real wood and has nice rubber feet on the bottom to keep it from moving around. The angle is nice for my wrists and it’s easy to clean with just a damp cloth. If I ever wear this one out (which I doubt) I’d buy another!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 31, 2026
★★★★★ 5
Super comfortable - much better than memory foam wrist rests!
Color: Walnut Wood, Size: Large, Color: Walnut Wood, Size: Large
Get this wrist rest - you won't be disappointed. Had ergonomic keyboards and have tried memory foam rest in the past and this is much better. Smooth wood, perfect height and very supportive to keep wrists in neutral position when typing. Got the 17.3" and like that there's ample room to not feel squashed, but probably could have done with the medium length. Great angle for my mechanical keyboard. Love it!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 6, 2026
★★★★★ 4
What an excellent wrist rest! Except for this one thing....
Color: Walnut Wood, Size: Large
This is a solid piece of wood with great quality. Fantastic large rubber grips on the bottom (left and right sides only).
Pro: I use it for editing and gaming. And though I thought the wood might be a bad choice in the long run, it turns out it's pretty nice. Not as comfortable as a gel rest but I knew what I was getting when I ordered it. I buy things for function AND aesthetics. I love how this looks. The uniqueness is really something. I got the natural one instead of the black so that the grains and lines can be easily seen.
Con: Unfortunately, after almost 2 months, the wood has warped some. Not enough to effect my typing but, enough that I notice it. The warp is the kind where the opposite angled corners go up and down. While the other 2 corners are fine. In my case, the top left and bottom right, when pressed independently, rock the wrist rest. The top right and bottom left stay grounded. This is why I took a star off. Because there's no way this should be happening.
So, looks and quality are up there. The rubber grips are solid. Why it's warping is puzzling to me. NO liquid wasted on it. Or, extreme temperature changes have happened. I've made sure the rubber grips. And that the surface the rest sits on (a glass mouse scrolling top by Superglide) is clean. Yet, I get this slight rocking. It bugs me this all happened right after the return window closed. I would've simply exchanged it. I love it too much. I mean, this is, again, a SOLID piece of wood. Maybe this won't happen for everyone. I mean, it's wood. Eh
I would still recommended this regardless.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 24, 2025
★★★★★ 5
Fantastic Product
Color: Walnut Wood, Size: Small
This is very nice! I type all day for my job and this made a big difference. It's very comfortable and supportive.
Im allergic to latex rubber, which is in most gel options. It's really nice to have a safe, effective alternative
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 22, 2026
★★★★★ 5
Beautiful, Solid Real Wood Wrist Rest
Color: Walnut Wood, Size: Large
This wooden wrist rest feels premium and the finish is super smooth — it’s noticeably nicer than foam or gel pads. Real wood looks great on my desk and still feels comfortable during long typing sessions. Definitely worth it if you want something stylish and functional.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 15, 2026
recommand products
Sterling Silver Double Turtle Pendant on 18 inch box chain ~ 5-1-612
58.00
Sterling Silver Starfish & Stone Earrings ~ 2-1-1229 #4
25.00
Sterling Silver Red CZ Heart Dangle Earrings ~ 2-1-1136 Red
38.00
Pink Lily ~ "Harmony" Large Pinch Clip ~ "Sparkle Jewels" Collections ~ Sand
14.00
Sterling Silver Brown & Orange Stone Choker 5-1-307
44.00