UNI-T UT691-10 Optical Fiber Cable Tester, 650nm Laser, 10mW, 10km Range, 3.7V 1050mAh Battery, IP54

The UNI-T UT691-10 is a professional-grade optical fiber cable tester designed for precise fault location and continuity verification in fiber optic networks. Utilizing a 650nm laser source with 10mW output power, this device provides reliable performance for identifying breaks, bends, or faulty connections over distances of up to 10km. Built for demanding environments, the tester features an IP54-rated housing that offers protection against dust and water splashes, making it a dependable choice for field technicians and network installers.

Advantages

This optical fiber tester stands out due to its combination of high-precision laser output and robust physical construction. The integrated 1050mAh rechargeable battery ensures long-lasting operation during extended maintenance sessions, reducing the need for frequent charging. Its compact design and intuitive interface allow for rapid deployment, while the 10km range provides sufficient coverage for most local area network and fiber-to-the-home installations. The IP54 rating ensures that the device maintains operational integrity even when used in challenging outdoor or industrial conditions.

Suitable for

• Identifying fiber breaks and macro-bends
• Continuity testing of optical fiber cables
• Fiber optic network installation and maintenance
• Troubleshooting local area networks and fiber-to-the-home systems

This device may not be suitable for testing extremely long-haul fiber optic lines exceeding 10km or for applications requiring high-power laser sources beyond 10mW. It is not designed for measuring signal attenuation or performing complex optical power analysis.

Key specifications

• Laser wavelength: 650nm
• Output power: 10mW
• Maximum testing range: 10km
• Battery capacity: 3.7V 1050mAh rechargeable
• Ingress protection: IP54

To use the UNI-T UT691-10, connect the fiber optic cable to the output port of the device. Ensure the connector type is compatible with your cable. Power on the unit and select the desired laser mode to emit the light signal. Observe the cable for any visible light leakage, which indicates a break or a significant bend in the fiber. Always ensure the fiber end faces are clean before connection to maintain signal integrity.

What to consider before purchase

• Verify that the connector type matches your specific fiber optic infrastructure
• Ensure the 10km range is sufficient for your typical installation requirements
• Confirm that the 650nm laser wavelength is appropriate for your testing needs

Always wear appropriate eye protection when working with laser devices and never look directly into the laser output port or the end of the fiber optic cable while the device is active.