ZKLGS Optical Power Meter, FTTH Tool Fiber Optic OPM Optical Power Meter，Visual Fault Locator VFL 5/15km RJ45 Tester，Cable Tracker Mini Red Fiber Pen(4in1 5KM -70 to 3)

1. Auxiliary lighting function: the main and auxiliary computers are equipped with LED lighting lights, and you can use the lighting with one button without turning on the machine. 2. Powerful red light source: open the top right cover and insert the fiber jumper to test the red light. The light is stable, and it can easily penetrate the long-distance fiber. 3. Optical power detector: open the top left cover and insert the jumper to test. High precision, measurement error is less than 0.2dB (can be manually calibrated). 4. RJ45 pairing function: lightly press the button on the back of the main unit to take out the right side auxiliary unit. The main and auxiliary computers are plugged into the network cables, and they will automatically start to line up after turning on. 5. rangefinder: press the REF key in any state to use the rangefinder function. One-key ranging, easily cope with the effective distance of up to 40 meters required for work.