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Fiber Optic Optical Break Locator

Affordable distance to break testing.


Please call 877-877-2269 for a replacement product or part.
NONE DoubleDiamond™ Warranty (Standard)

Product Features

  • Measures the time and intensity of the light reflected on an optical fiber, enabling the user to find faults, splices, and bends.
  • The tool of choice for FTTx application installation and maintenance as well as fiber R&D and single-mode network testing on a budget.
  • Also perfect for CATV technicians and MDU installation.
  • Small size and weight make it ideal for field work.

Tech Specs

Connectors FC/SC/ST
Data Storage 999 measurements
Environmental Storage temperature: -4 to 140° F (-20 to 60° C)Humidity: <85% (noncondensing)
Event Dead Zone 3 m (9.8 ft.)
Fiber Type 9/125 µm single-mode
Measurement Range (Maximum) 130 km (80.8 mi.)
Operating temperature 14 to 131° F (-10 to 55° C)
Power Output power (maximum): 100 mW; Power supply: AC/DC adapter (4) rechargeable batteries
Pulse Width (ns) 10/20/40/80/160/320/640/1280/2560/5120/12400/24800 (auto-switch)
Size 7.5"H x 4.1"W x 2.2"D (19 x 10. 5 x 5.5 cm)
Wavelength 1550 ±20 nm
Weight 0.6 lb. (0.3 kg)

* Technical specification weight is the unit weight. It is not the packaged shipping weight. For shipping weight, please contact Black Box customer service at 877-877-2269.


Double Diamond Warranty Diamond

Double Diamond™ Warranty (Standard)

Take the risk out of equipment purchases with the Double Diamond™ Warranty from Black Box Network Services.

The Double Diamond Warranty is our warranty that protects your Black Box® brand products* from accidental damage, including drops, water, and power surges.

The Fiber Optic Optical Break Locator comes with a standard NONE warranty already included.

During the warranty period, Black Box Network Services will repair or replace your damaged equipment within one week of receipt at NO CHARGE!*

Plus, get an Extended Double Diamond Warranty.

You can also extend your warranty or protect a previously purchased Black Box® brand product** for an additional year—for only 10% of the purchase price! Or, extend your coverage for a full three years for only 20% of the purchase price!

Ordering an extended warranty is easy: When viewing a product in your shopping cart, just select the one or three years of additional coverage in the dropdown menu under “Warranty Options.” For details, contact Customer Service at 724-746-5500.

* Warranty subject to certain exclusions and limitations ** Certain products may not be eligible.

What’s more, we also have a 45-day return policy. Simply call Customer Service for a Return Authorization (RA) number, return your product in new condition and in the original package, and receive a full refund.