SKU: 3332711477

Optical Time Domain Reflectometer OTDR NK4000D

Sale price$98.24 Regular price$109.16
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Description

Optical Time Domain Reflectometer OTDR NK4000DNK4000 series OTDR adopts 4. 3 inch capacitive touch screen. It integrates 12 functions, such as auto OTDR, expert OTDR, event map, OPM, RJ45 cable tracker, and computer level file management to meet various test requirements in different occasions. OTDR has a maximum dynamic range of 26dB, 8G memory, and can store more than 200,000 curves; it is equipped with 4000mAh highdensity polymer lithium battery, intelligent power saving management, measuring

NK4000 series OTDR adopts 4.3-inch capacitive touch screen. It integrates 12 functions, such as auto OTDR, expert OTDR, event map, OPM, RJ45 cable tracker, and “computer level” file management to meet various test requirements in different occasions. OTDR has a maximum dynamic range of 26dB, 8G memory, and can store more than 200,000 curves; it is equipped with 4000mAh highdensity polymer lithium battery, intelligent power saving management, measuring time of more than 8 hours, and supporting power supply and charging of the power bank.

NK4000 series are used to measure the length, loss, connection quality and other parameters of optical fiber. It is widely used in FTTX, secondary backbone network engineering construction, maintenance and emergency repair test, and production measurement of optical fiber and cable.

Expert OTDR:Professional measurement,curve/list/map are displayed simultaneously

Auto OTDR: no complex settings,one key test

OPM supports CW/270/330/1k/2kHz frequency identification

VFL and LS can run in the background, multi task can be operated simultaneously

LS supports CW/ modulation mode output with adjustable output power

RJ45 cable tracker of digital radar,stronger anti-jamming ability

Auto OTDR, expert OTDR, event map, OPM, LS, VFL, RJ45 cable tracking, RJ45 cable sequence,RJ45 cable length, end face detection, flashlight optical loss test

RJ45 cable sequence/cable length test, up to 300m

One click screen capture, easy to save the interface

 

Wavelength 1310/1550±20nm
Dynamic Range 26dB/24dB
Event Blind Zone 2.5m
ATT Blind Zone 8m
Test Range 500m/1km/2km/4km/8km/16km/32km/64km/100m
Pulse Width 3ns/5ns/10ns/20ns/30ns/50ns/80ns/160ns/320ns/500ns/800ns/1μs/2μs/3μs/5μs/8μs/10μs
Ranging Accuracy ±(1m+Sample interval+0.005%×Test distance)
Linearity ≤0.05dB/dB
Sample Points 16k~128k
Sample Resolution 0.05m~8m
Loss Resolution 0.001dB
Loss Threshold 0.20dB
Range Resolution 0.001m
Refractive Index 1.00000~2.00000
Reflection Accuracy ±3dB
File Format SOR Standard File Format
Loss Analysis 4-point method /5-point method
Laser Safety Level Class Ⅱ
Connector FC/UPC(Interchangeable SC、ST)
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 3332711477

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4.6 ★★★★★
Based on 2369 reviews
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Lh2oson
Houston, US
★★★★★ 5
Class and elegance
Color: Gold
I absolutely love this watch! My grandson also loved mine so I bought him one for Christmas. This is the 4th Citizen watch I have purchased. 2 are ecodrive and 2 are battery powered. I have to say I do like the battery powered watches better for their weight, lots lighter on your wrist than the ecodrive I regularly used to wear. This watch has taken a beating, as it seems like I'm always hitting the face on something, and has performed beautifully. I figured that I would've replaced the crystal by now but I haven't had to. My grandson admired and wanted mine, (I can't part with it because it has special meaning) so I bought him the identical model. I have worn mine in water, extreme cold, and out to dinner. It looks and performs beautifully. This watch is classy, elegant and beautiful and it's not a giant timepiece although you may have to take it to your local jeweler for band sizing. There's videos on u tube but I don't recommend trying that for taking links out. I say beautiful because as a woman wearing this watch it's not overwhelming and screaming look at me I'm wearing a man's watch. However this watch is handsome looking on men, my husband and grandson lol. The band is smooth, doesn't kink or pinch my wrist and when fitted properly it doesn't end up face down or sliding over and staying over on the outside of my wrist. Only drawback for me is I'm not used to the day dial and sometimes when setting the time bc some months are shorter I tend to be a day ahead, easy fix. I've gotten lots of compliments on this watch and would definitely buy it again
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Reviewed in the United States on February 10, 2024
N
Verified Purchase
Nick Brook
Whiting, US
★★★★★ 5
5-Star Review: Sleek, Reliable, and Worth Every Penny!
Color: Gold, Color: Gold
I recently purchased this Citizen watch, and I'm thoroughly impressed! The design is sleek and modern, perfect for both casual and formal occasions. The Eco-Drive technology is a game-changer-no battery changes needed, just sunlight or indoor light to keep it running. The build quality feels premium, and the stainless steel band is comfortable yet durable. It keeps time accurately, and the dial is easy to read. For the price, this watch offers exceptional value and style. Highly recommend it to anyone looking for a reliable, eco-friendly timepiece!
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Reviewed in the United States on February 11, 2025
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Verified Purchase
Amazon Customer
Lexington, US
★★★★★ 5
Quality
Color: Gold
Great a little loss on the wrist but, great. Happy with my choice. ☆☆☆☆☆
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Reviewed in the United States on May 26, 2026
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Laura Beatriz Lorenzo Rodríguez
Charlottesville, US
★★★★★ 5
Muy cómodo y puedes llevar en cualquier ocasión
Color: Silver Bracelet, Black Dial, Color: Silver Bracelet, Black Dial
Demasiado cómodo Muy lindo y puedes usarlo todo el tiempo una de mis mejores compras puedes llevar lo mismo de dos q de noche
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Reviewed in the United States on May 30, 2026
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Verified Purchase
Peggy McLane
Omaha, US
★★★★★ 4
Good watch
Color: Gold
Nice looking watch and works well
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Reviewed in the United States on July 7, 2025

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