It can indicate the signal presence or absence(live or dark fiber) without damaging the fiber and interrupting the communication.
Indicate the signal directions and power in fiber, displays the relative core power. Micro bending test technology use of fiber-optic bending leak out when the weak optical signal, optical signal to detect the direction and intensity. If you want to measure accurate power, please choose a power meter
Effectively identify 3 signal frequencies (270Hz, 1KHz, 2KHz) and indicate signal direction. Once identified, the optical fiber identifier will emit a beeping tone.
Build in VFL red light source can measure the distance is about 10 kilometers. The Stable and powerful concentrated beam can effectively and quickly help you to detect the optical fiber communication.
Description
FYBOPTWU - Live Optical Fiber Identifier with Wave Respond 800-1700nm Built in VFL and Optical Power Meter Range -50~+26dBm OPM Functions FTTH Tool