
Optical Time Domain Reflectometers
60s OTDR Snapshot

Tiny yet powerful, easy to carry. Three test function

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

Comprehensive OTDR. Online test module enables active fiber testing

The most advanced and High-performance for fiber optic analysis
Find the Right OTDR for You
| Model / Items | MN3 Mini OTDR | F1 Mini OTDR | F4 OTDR | F7 OTDR | RM7 OTDR |
| Dynamic Range | 28/26 dB | 32/30 dB | Max: 45 dB | Max: 45 dB | Max: 50 dB |
| Wavelength | SM | SM | SM, MM | SM, MM, PON | SM, MM, PON |
| Event Dead Zone | 1 m | 1 m | 0.8 m | 0.8 m | 0.6 m |
| Attenuation Dead Zone | 8 m | 8 m | 4 m | 4 m | 2.5 m |
| 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.
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.



