SKU: 83094703629

Optical Variable Attenuator EVA50-40

Sale price$205.86 Regular price$228.73
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Description

Optical Variable Attenuator EVA50-40Most compact and rugged portable attenuator on the market Three wavelengths: 1310nm 1490nm 1550nm Different attenuator range, 40dB, 60dB or 80dB Can save current value as reference Can save 10 tracks attenuation value Memorize the value after instruments shut down Energy save mode One year warranty and Three year recommended calibration interval Model EVA50 40 EVA50 60 EVA50 80 Attenuating Range 40 dB (SM) 60 dB (SM) 80 dB (SM) Calibrated Wavelengths

Most compact and rugged portable attenuator on the market

Three wavelengths: 1310nm / 1490nm / 1550nm

Different attenuator range, 40dB, 60dB or 80dB

Can save current value as reference

Can save 10 tracks attenuation value

Memorize the value after instruments shut down

Energy save mode

One-year warranty and Three-year recommended calibration interval

Model EVA50-40 EVA50-60 EVA50-80
Attenuating Range 40 dB (SM) 60 dB (SM) 80 dB (SM)
Calibrated Wavelengths 1310nm / 1490nm / 1550nm
Fiber Mode SM
Attenuating Mode Digital
Display Resolving Power 0.1dB
Display LCD, 128*64
Max Input Power + 21 dBm
Return Loss* 40 dB
Insertion Loss* 2.5 dB
Connector FC/PC (or customize)
Uncertainty ± 0.5 dB
Repeatability* ± 0.2 dB
RS-232 Optional
Auto Power Off No operation in 10 minutes (can be canceled), Low battery energy
Battery Charge Yes
Operate Time Above 20 hours
Power Supply 3 * AA batteries or AC/DC adapter

* at 20±3℃, CW, with FC/PC connector,1550nm

Size(H*W*D) 190mm * 90mm * 40mm
Weight/td> About 450g
Storage Temperature -20 -- +60°C, < 90%RH
Operating Temperature  -10 -- +50°C, < 90%RH

EVA50-XX

Model

EVA50-40 = 40dB

EVA50-60 = 60dB

EVA50-80 = 80dB

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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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
SKU: 83094703629

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4.3 ★★★★★
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Brandon
Bozeman, US
★★★★★ 5
Great Tray For Storing My Everyday Carries
Size: 8.5" x 5.8" x 1.9", Color: Black
My everyday carry items (wallet, keys, etc.), used to just get thrown around wherever when I'd get home, but this little tray makes a great, defined, space for me to keep those things when I don't need them on me. The soft lining reduces the obnoxious sound of throwing keys on a hard surface, and of course keeps me from scratching up a surface. The build feels quality and I haven't seen any damage to it yet. Also the all black version with gold buckle looks quite good and adds a subtle touch of luxury. Absolute recommend for the price.
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Reviewed in the United States on April 15, 2026
D
Verified Purchase
David Jordan
Massapequa, US
★★★★★ 5
Just the right size to empty your pockets.
Size: 8.5" x 5.8" x 1.9", Color: Orange
Perfect size to empty my pockets when I get home. Fits my wallet, keys, AirPods, etc. excellent quality.
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Reviewed in the United States on March 21, 2026
P
Verified Purchase
Pilot Wife
Draper, US
★★★★★ 5
Nice and classy
Size: 8.5" x 5.8" x 1.9", Color: Black
Bought this for my husband for Christmas and he loved it. Super classy elegant well made box. Perfect for bedside nightstand for your watch and rings.
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Reviewed in the United States on December 4, 2025
S
Verified Purchase
SC
Pawtucket, US
★★★★★ 5
Nice looking and durable
Size: 8.5" x 5.8" x 1.9", Color: Black
I bought this for my little nephew to put his rocks in and out and to keep them in. It’s perfect and durable.
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Reviewed in the United States on January 12, 2026
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Amazon Customer
Phoenix, US
★★★★★ 5
Perfect size
Size: 8.5" x 5.8" x 1.9", Color: Black, Size: 8.5" x 5.8" x 1.9", Color: Black
Love the look of leather and metal together.
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Reviewed in the United States on April 30, 2026

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