【Core Alignment】6 motor splicing machine, can recognize the fiber type, ture core alignment 【Fast Splicing Time 】7s in (Fast mode) splicing mode. 【Fast Heating Time 】Less than 18s in typical heating mode of fusion splicer. 【Large Battery Capacity】7800mAh Li-battery, support to continuous splicing and heating 300 cycles 【Stable Splice Loss】0.03dB（SMF）0.02dB（MMF) in typical mode of fiber optic fusion splicer machine 【Durable Quality】Fusion splicer with wind-proof, shock-proof, high-altitude and dust-proof function. 【Large Splice Records Storage】support to keep 30000 groups splicing records . 【Touch Screen】Easy-operating, splicing machine support 5 inch touch screen function. 【Applicable Fibers】SM(G.652)、 MM(G.651)、DS(G.653)、 NZDS(G.655)、 BIF/UBIF(G.657) FA-66S Fusion Splicer, it is 6 motors, core alignment, can identify the fiber type, which makes splice loss lower; 6 seconds splicing and 15 seconds heating time; FA-66S is 5-Inch high resolution screen with 380 times focused magnifications