... , the intermittently audible tone is activated. The FI2000 optical fiber identifier also recognize the modulation like,270Hz,1kHz and ... There are four adapter heads available: Ø0.25, Ø0.9, Ø2.0 and Ø3.0. The FI2000 optical fiber identifier is powered ... 200 Standard Packages MODEL INCLUDES SH-FI2000 SH-FI2000 Optical Fiber Identifier, 4pcs adapter heads, Sunshade, Alkaline battery, User Manual, Cotton ...