Visual Fault Locator

The UNI-T UT691-01 Visual Fault Locator (VFL) is a compact and effective diagnostic tool designed for identifying and localizing faults in optical fibers, as well as performing end-to-end fiber identification. It utilizes a visible red light source for reliable tracing.

Key Features
- Uses a visible red light source at 650 nm wavelength.
- Supports dual emission modes: continuous and pulsed.
- Equipped with a universal 2.5 mm connector, compatible with FC, SC, and ST interfaces.
- Rated IP54 for reliable protection against dust ingress and splashing water.
- Powered by a built-in 3.7 V 1050 mAh rechargeable polymer lithium battery.
- Includes Automatic Power Off (APO) function for efficient battery conservation.
- Features an integrated LED flashlight and a battery status indicator.

Applications
The UT691-01 is widely applied in the construction and maintenance of optical cables, fiber-optic communication systems, sensor technology, and optical cable television (CATV) networks.