Main Model:

BO-613D: 420TVL,  Color1/3" Sony CCD，0Lux，
BO-623D: 420 TVL, Color1/3" Sharp CCD,0Lux,
BO-633D: 420 TVL, Color1/4" Sony CCD, 0Lux，
BO-663D: 420 TVL, Color1/4" Sharp CCD, 0Lux，