... audible tone is activated. The FI2000 optical fiber identifier also recognize the modulation like,270Hz ... 0.25 (Applicable for Bare Fiber) Ø0.9 (Applicable for Ø0.9 Cable ) Ø2.0 (Applicable ... Cable ) Signal Direction Left & Right LED Singe Direction Test Range (dBm, CW/0.9mm bare fiber) ... Packages MODEL INCLUDES SH-FI2000 SH-FI2000 Optical Fiber Identifier, 4pcs adapter heads, Sunshade, Alkaline battery ...