Smartec STC-3002, Руководство пользователя

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the power supply of 90~260Vac.
SW1. BLC (Back light compensation) mode switch:
When the object is dark by strong light (sun illumination etc.), turn on
BLC switch to make object becomes bright.
SW2. D/N mode switch:
COLOR / D/N switch.
D/N: Color mode automatically switches to B/W mode under 2 Lux.
COLOR: Normal position (D/N OFF).
CONTROL SWITCH OPERATION