Portable fiber diagnostics

One device. Eight field functions.

The HJ350-D22 brings OTDR analysis, event mapping and essential optical checks into a compact touchscreen platform for FTTH installation, fiber maintenance, fault localization and network troubleshooting.

OTDREvent MapOptical Power MeterVisual Fault LocatorLight SourceLOSS TestFlashlightUSB drive support

Ports and storage

Ready for field connectivity.

Universal SC connection, Type-C charging/data, internal storage, SD expansion and USB drive support keep trace capture and transfer practical.

Universal SC connector
Type-C charging and data
Internal storage + SD expansion
Standard SOR file format

Fiber connected

Move from link access to fault localization.

Use OTDR traces and Event Map to investigate events and support field troubleshooting across selectable ranges from 100 m to 80 km.

HJ350-D22

Technical specifications

HJ350-D22 Technical Specifications

Wavelength1310/1550 nm ±20 nm

Dynamic range22/20 dB

Fiber typeG.652D

Event dead zone2 m

Attenuation dead zone8 m

Measurement ranges100 m / 500 m / 1 / 2 / 5 / 10 / 20 / 40 / 60 / 80 km

Max sample points20,000

File formatStandard SOR

Display3.5-inch capacitive touchscreen

ConnectorUniversal SC

StorageInternal storage + SD expansion

Charging / dataType-C

Battery2000 mAh / 3.7 V

Working timeApprox. 8 hours

WeightApprox. 215 g including battery

Included with your HJ350

What’s in the box

The HJ350-D22 package includes the essentials for transport, charging and routine fiber maintenance.

01HJ350-D22 OTDR

02Carrying case

03USB-C cable

04User manual

05Fiber-cleaning accessories

Package contents are limited to the items listed above.

Laser safety

Use appropriate procedures.

Laser classifications listed for the HJ350-D22 are Class 2 for OTDR/LS and Class 3B for VFL. Avoid direct eye exposure, never look into an active fiber or optical port, and follow appropriate laser-safety procedures.

Shipping and warranty

Free shipping within the United States.
Processing: 2–5 business days. Transit: 7–10 business days. Estimated total: 9–15 business days.

One-year warranty.
Technical troubleshooting support is included for product issues.

The HJ350-D22 is offered as a portable fiber troubleshooting and diagnostic tool. It is not positioned as a laboratory or certification instrument, and no claim of FDA approval, FCC approval, U.S. certification or U.S. laser compliance is made.

Fiber Diagnostic Tools

HJ350 Dual-Wavelength OTDR Fiber Tester — 1310/1550 nm