Handheld, multi-function optical time-domain reflectometer commonly used for fiber optic cable testing—especially in FTTx, telecom, or field service environments.
Key features:
Supports dual wavelengths (typically 1310 /nm and 1550 /nm) for testing both single-mode and multimode fibers
Compact and portable, ideal for field use in installations and troubleshooting
Measures dynamic range (e.g., 24–26 /dB), offering insight into the maximum loss it can accurately assess over distance
Provides metrics such as event dead zone, loss resolution, and distance accuracy for fault localization
Often integrates additional tools like visual fault locator, optical power meter, and touchscreen interface
