Professional OTDR Manufacturer | Precision Optical Time Domain Reflectometers

China OTDR Factory - ZTO Cable
NK6200 Elite OTDR

Optical Time Domain Reflectometer (OTDR)

Dynamic Range: 20dB to 45dB (Model Dependent)
Testing Range: From 100m Short-Link to 400km+
Display: 3.5″ to 7″ HD Touch Screen
Multi-Function: Integrates OPM, VFL, LS, Event Map
Live Testing: Supported on F1/F2/T Series
File Format: Standard .SOR Output
Warranty: 1-3 Years Factory Warranty
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OTDR Products Series Technical Specification Comparison

SpecificationMini Series (NK2800)Compact Pro (NK3200/NK4000)Elite Series (NK6200)
Display3.5-inch Color LCD3.5″ to 4.3″ Touch Screen7-inch Capacitive Touch
Dynamic Range20 dB24 dB – 26 dB32 dB – 45 dB
Max Measurement RangeUp to 80 kmUp to 100 kmUp to 420 km
Event Dead Zone2.5 m2.5 m – 3 m0.5 m – 0.8 m
Integrated Functions5-in-1 (OTDR, OPM, VFL, LS, Flashlight)9 to 12 Functions (Event Map, Ethernet Test)9 Modules + Advanced Ethernet Testing
Live Fiber TestingSupported (1550nm)Supported (F1/F2 Models)Advanced PON Testing Options
Battery Life> 12 Hours Standby> 12-20 HoursHigh Capacity / Long Duration

* Technical Note: Dynamic range largely determines the measurable distance. For FTTx/Access networks, the Mini and Compact Pro series are ideal. For Metropolitan and Long-Haul Backbone networks, the NK6200 series is recommended due to its superior dynamic range (up to 45dB) and short dead zones (0.5m). All models support SOR file export.

NK6200 Series OTDR with 7-inch Touch Screen
NK6200 Series OTDR 7-inch Touch Screen 45dB Max
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NK6200 Intelligent Optical Time Domain Reflectometer
NK6200 Intelligent OTDR with Ethernet Testing
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NK4000 Mini OTDR PRO Series
NK4000 Mini PRO Series 4.3″ Touch OTDR up to 100km
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NK3200 Mini PRO Series OTDR
NK3200 Mini PRO Handheld OTDR 9 Functions
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NK2800 Mini Optical Time Domain Reflectometer
NK2800 Mini OTDR Compact Live Fiber Tester
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Our Optical Time Domain Reflectometer (OTDR) series offers a comprehensive solution for fiber optic network testing. From the compact and portable NK2800/NK3200 series designed for rapid FTTx deployment, to the high-performance NK6200 series capable of long-haul backbone diagnostics, we ensure precision and reliability. These devices integrate essential tools like Visual Fault Locators (VFL), Optical Power Meters (OPM), and Stable Light Sources, significantly improving field efficiency for engineers and maintenance technicians.

FAQ for OTDR Testers

Q

Which OTDR model is best for PON / FTTH networks?

A

For FTTH/PON networks, we recommend models with Live Fiber Testing support (such as the NK4000F1/F2 or NK6200 series). These allow you to test at 1625nm or 1650nm without interrupting the active service signal (1310/1490/1550nm).

Q

Do your OTDRs come with analysis software?

A

Yes, all our OTDRs include built-in intelligent analysis software to create Event Maps and Pass/Fail assessments. Files are saved in the standard .SOR format, compatible with professional PC reporting software.

Q

What is the difference between dynamic range and dead zone?

A

Dynamic range (e.g., 32dB vs 45dB) determines how far the OTDR can measure. Dead zone determines the OTDR’s ability to detect closely spaced events. For short links, a short dead zone (like NK6200’s 0.8m) is crucial. for long-haul, high dynamic range is priority.

Q

Does the device support multiple languages?

A

Yes, the user interface supports English, Spanish, Portuguese, and other major languages to facilitate global deployment.

Q

What is the warranty and calibration policy?

A

ZTO provides a standard factory warranty (1-3 years depending on model). Each unit is calibrated before shipment, and we offer technical support for the lifetime of the product.

ZTO Fiber Optic Cable Factory
ZTO fiber optic cable factory ZTO fiber optic cable factory
Fiber Optic Cable Patents

60 New Patents

Fiber Optic Cable Manufacturing

20 Years Of Manufacturing Experience

Fiber Optic Cable Quality

SGS Quality Assurance

Fiber Optic Cable Area

Land Area: 86,000 m²
Building Area: 40,000 m²

Fiber Optic Cable Service

1 Million Kilometers Of International Optical Cable Service Experience

Fiber Optic Cable R&D

An Company Integrating Production, R&D, Sales And Export

Fiber Optic Cable Products

1-288 Core OPGW, ADSS, Air Blown, Armored, Aerial, Underground, Drop Fiber Optic Cable Supplier

Fiber Optic Cable production line

Outdoor Production Lines: 16 Lines
FTTH DROP Production Lines: 18 Lines

fiber optic cable factory
fiber optic cable factory
fiber optic cable factory
fiber optic cable factory
Why Choose ZTO?
OEM And Packaging
OEM fiber optic cable packaging with moisture-proof wooden drums

We support OEM and use sturdy and durable moisture-proof wooden barrels to protect your optical cable during transportation.

Strict Quality Control
Fiber optic cable IEC testing and quality inspection

Each roll of optical cable is 100% IEC tested and meets ISO quality standards.

Global Factory Direct Sales
Global export of fiber optic cables from China factory

ZTO optical cables have been exported to more than 200 countries and have rich market experience.

Top Production Technology
Advanced fiber optic cable production technology and armored cable manufacturing

ZTO fiber optic cable factory can produce layer twisted steel wire armored fiber optical cables, 288 core OPGW fiber optical cables, and ADSS 1500m span.

Delivery Is Very Fast
Fast delivery of fiber optic cables from factory

We have high manufacturing efficiency and can deliver hot selling products and 1000KM drop fiber optic cables within 3 days, while 200KM outdoor fiber optic cables can be delivered within 7 days.

New Customer Offer
Fiber optic cable factory pricing advantage for new customers

We are located in the Hainan region of China and have very good local tax policies, which can provide our customers with prices 10% lower than the market.

Top fiber core brands
Fiber optic cable manufactured with Corning and Fujikura fiber cores

In the production process, we use fiber cores from top global brands such as Corning and Fujikura.

PDD And After-sales Service
Door to door delivery and after-sales service for fiber optic cables

We can provide door-to-door delivery and technical guidance services, and guarantee a 30 year service life for optical cables.

Provide Free Samples
Free fiber optic cable samples for customer testing

We can provide you with free samples, and if you are satisfied, we can cooperate again.

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