... Ø0.25 ( Applicable for Bare Fiber)Ø0.9/2.0/3.0 (Applicable for Tail Fiber)Signal DirectionLeft & Right LEDSinge Direction Test Range(dBm,CW/0.9mm bare fiber ... /0.9mm bare fiber)-50 ~ +10Signal Frequency Display270Hz, 1kHz, 2kHzFrequency Test Range(dBm, Average Value)Ø0.9/2.0/3.0-30 ~ 0 (270Hz, 1KHz)-25 ~ 0 (2KHz)Ø0 ...