Fiber optic identifier T-FI450

1) Support to detect optical signals without disrupting traffic; Based on non-destructive technology; 2) Indicate the signal direction in fiber; 3) Detect a variety of optical tones, 270Hz, 1kHz and 2kHz; 4) Suitable for 0.25, 0.9, 2.0, 3.0mm fiber, and no need to replace the clamp block, more convenient than others; 5) Build in visible fault locator 1mW or 10mW optional 6) Battery low indication; 7 Powered by 2 units of 1.5V AA alkaline batteries;