Optical Time Domain Reflectometers

60s OTDR Snapshot

Tiny yet powerful, easy to carry. Three test function

MN3 mini

F1 mini

OTDR, remote test, VFL, ethernet test, optical loss test, OPM

Learn More

Comprehensive OTDR. Online test module enables active fiber testing

Learn More

The most advanced and High-performance for fiber optic analysis

Learn More

Find the Right OTDR for You

Model / Items	MN3 Mini OTDR	F1 Mini OTDR	F4 OTDR	F7 OTDR	RM7 OTDR
Dynamic Range	28/26dB	32/30dB	Max: 45dB	Max: 45dB	Max: 50dB
Wavelength	SM	SM	SM, MM	SM, MM, PON	SM, MM, PON
Event Dead Zone	1.5m	1.5m	0.8m	0.8m	0.6m
Attenuation Dead Zone	10m	10m	4m	4m	2.5m
Screen	4.3 inch	4.3 inch	8 inch	8 inch	10.1 inch
OPM & VFL	√	√	√	√	√
OLS	×	×	√	√	√
Fiber Microscope	√	√	√	√	√
Event Map	√	√	√	√	√
Optical Link Analysis	×	×	×	×	√
Active Fiber Test	×	×	×	√	√

OTDR Test: Ensure Your Fiber Optic Performs

OTDR (Optical Time Domain Reflectometer) testing helps quickly detect fiber faults, measure optical loss, and verify cable quality, widely used in fiber optic manufacturer, telecom operator, electric power, railway network, etc.

Why OTDR Matters:

Locate breaks, bends, and connector issues fast
Verify network installation quality
Monitor fiber performance over time
Generate clear reports for maintenance and client acceptance

TFN offers reliable, comprehensive, and accurate OTDR testers, from basic models to advanced multifunctional devices, designed to meet any fiber testing need.

Popular Picks

S3 Fusion Splicer

VFL

S7 Fusion Splicer

OPM

OTDR FAQs

What’s the lead time?

For our standard products, if there are in stock and ready for shipment, the lead time is about 7-10 days. For our optional products, the lead time is about 25-30 days.

Do you support online training?

Yes, we support online training. We also have English operation videos for OTDR (on our YouTube channel) and analysis software for our clients.

Can I purchase samples for testing and evaluation?

Yes. We encourage customers to test samples before placing bulk orders to ensure they fully meet your application requirements.

Samples can be purchased at the standard unit price and shipped individually with fast delivery.

For customers with potential for long-term cooperation, the sample fee can be deducted from subsequent bulk orders if certain conditions are met.