Cable Sequence and Fault Test: Yes. Visual Fault Location Function: detect and locate fiber breaks, as well as problems such as poor connections, fiber bends or cracks. Other Settings: backlight brightness(level 1/2/3), backlight (MAX/1min/30S/15S), auto-off (15min/30min/1h/2h/off), red flash under VFL function( flashing/slow flashing/ON).
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