ST-3303 Optical Variable Attenuator 2.5-60dB

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  • ST-3303 Optical Variable Attenuator 2.5-60dB

ST-3303 Optical Variable Attenuator 2.5-60dB

Product Item: #12993
P/N: ST-3303
Starting at: US$885.00

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Order Today, Ship before 10/21/2021, from U.S. or HK
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ST-3303 Handheld Optical Variable Attenuator

ST-3303 handhold optical variable attenuator is used for continuously variable optical signal attenuation. As the attenuator is used in the laser system for the on-line testing, there, therefore 3303 can be used in the digital system of communication devices (such as:PHD, SDH) and also in the system of adopting analog modulation (CATV)



    Stepwise attenuating by circumgyrated dial: attenuating step 0.05dB
    Provide with the function of displaying dB and dBm attenuating value
    Alternative function of 10 minutes Auto-off without operation
    After off the instruments, the system will have the memorizing of the attenuating value and the attenuating step, in order to restore the system back to the previous shut down state when open the instruments next time


     Field Telecom Maintenance
     Field CATV Maintenance
     Comprehensive cable construction system
     Optical instruments research and development
     Optical communication education and lab testing
     Other optical project


Attenuating wavelength Range
Fiber Model
9/125um SM
Optical Connector
Calibrated wavelengths
Measurement Range
Minimize Insertion Loss
Attenuating Accuracy
Back Reflection
≈35dBtypical value40dB
Max input
Displaying type
lattice 128*64 black and white, white back ground light
Rechargeable batteries
Power supply adaptor
Operation temperature
Storage temperature
0~85%non- condensation



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Shipping Time

FedEx IP: Within 1-4 business days
FedEx IE: Within 4-6 business days
DHL: Within 2-6 business days
EMS: Within 4-15 business days
UPS: Within 1-3 business days
Hong Kong Post Airmail: Within 10-30 business days


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Wire Transfer, West Union


Satisfactory return or item exchange


Money back guarantee


Limited Warranty

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Customer Reviews

Displaying 1 to 2 (of 2 reviews)

by Ehsan Al
Date Added: 04/21/2020
Very good VOA, we get one unit for testing, now everything work well. Good job!

Rating: 5 of 5 Stars [5 of 5 Stars]
ST-3303 Optical Variable Attenuator 2.5-60dB ST-3303 Optical Variable Attenuator 2.5-60dB

by Micheal
Date Added: 03/10/2020
I get 5 units, all arrived with good performance. This voa works quite well for testing or lab using.

Rating: 5 of 5 Stars [5 of 5 Stars]
ST-3303 Optical Variable Attenuator 2.5-60dB

Displaying 1 to 2 (of 2 reviews)

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