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Ships within 48 hours · Estimated delivery Sep 23 - Sep 28
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Description
JW3218A General Purpose Optical Power Meter -70/+3dBmJW3218A General Purpose Optical Power Meter 70 +3dBm See Details: JW3218 General Purpose Optical Power Meter is Portable and durable,It can be used for the wide range of power measurement and multiple wavelength calibration. JW3218 in combination with JW3109 optical source tester and JW3303 optical attenuator can provide accurate and stable support for optical network's installation, operation and maintenance. Features: The general interface has FC SC
JW3218A General Purpose Optical Power Meter -70/+3dBmSee Details:
JW3218 General Purpose Optical Power Meter is Portable and durable,It can be used for the wide range of power measurement and multiple wavelength calibration.JW3218 in combination with JW3109 optical source tester and JW3303 optical attenuator can provide accurate and stable support for optical network's installation, operation and maintenance.
Features:
The general interface has FC/SC/ST connectors,Easy transformation.
It is Optional for the function of auto power-off.
The function of self-calibration can avoid regular calibration after long-term use.
Using universal AA battery is convenient for you to change battery in time,and it can work continuously for 240 hours.
LCD of the ON/OFF is Optional.
Application:
Maintenance in Telecom
Maintenance CATV
Fiber Optic Lab Testing
Other Fiber Optic Measurements
Specifications:
Type:JW3218A JW3218C
Wavelength(nm):800¡«1700
Calibrated Wavelength(nm):850¡¢980¡¢1300¡¢1310¡¢1490¡¢1550
Detector:InGaAs
Detector area:§¶0.3mm
Measurement? Range (dBm):-70¡«+3 -50¡«+26
Uncertainty£¨dB£©:¡À0.22(5%)
Linearity(dB):0.03
Resolution(dB):0.01
Operating Temperature(¡æ):-10¡«+60
Storage Temperature(¡æ):-25¡«+70
Time of automatic shutdown£¨min£©:10
Time of continuous work£¨h£©:240
Dimension(mm):151¡Á73¡Á26
Power Supply:3 Batteries(AA)
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
4.1 ★★★★★
Based on 7 reviews
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Product Reviews
★★★★★ 3
Came broken
Color: Silver
Came broken box was all busted up had to glue it but it works fine.
Update lasted less than 1 year. No longer works
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Reviewed in the United States on March 30, 2025
★★★★★ 5
Charging station for your phone/Apple Watch
Color: Silver
Great size
Durability easy to use
Worth the money, great all around!!!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 15, 2026
★★★★★ 4
Love it.
Color: Silver
Update:
I’ve had this charger for about 9-10 months. I still love it, but it seems that the watch charger is only working intermittently. Sometimes it charges and sometimes it doesn’t. Another odd thing with the watch charger is that my watch will chime occasionally in the middle of the night. Doesn’t do this on the standard Apple Watch charger, so, I’m not sure what is causing this. Due to these issues with the watch charger, I dropped one star.
Original Review:
This charger is great. The magnetic hold is strong and it keeps my iPhone 16 pro max solidly in place all night. Despite this solid hold it can remove it easily by sliding the phone up or down off of the magnet. The fact that I can charge my watch and air pods simultaneously is even better. Being able to store all three items on one device that takes up a small footprint on my nightstand is even better. The hold on these items is very light and they are easy to remove as well. There is a small green led light, but I can say I don’t even notice it.
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Reviewed in the United States on April 20, 2025
★★★★★ 5
GET IT
Color: Silver
LOVE IT!!! Charges all my apple products at the same time so i don’t have to have 10 chargers laying around anymore.
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Reviewed in the United States on March 28, 2026
★★★★★ 5
Very nice charger
Color: Silver
This works great, good looking, and compact on the countertop.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 28, 2026
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