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JW3306B fiber testing tool kit jw3306b ftth optical fiber identifier
Features:
1. Fast find fiber in a mass.
2. Indicate signal directions in fiber.
3. Indicate Live or dark fiber.
4. Detect 270Hz, 1kHz, 2kHz from laser source.
5. Adapter for 0.25, 0.9, 2.0, 3.0mm fiber.
6. One-year warranty and Three-year recommended calibration interval.