1, SONY / SHARP CCD is optional
2, 420 /480 /520TVL is optional
3, 5mm /8mm 36 IR LED
4, IR Range : 30/50m
5, 4-9 Vari-focus Lens from outer change
6,Cable out of Bracket Design
7, Double Glasses to Reduce IR Disturb
8, IR Auto-open by CDS Control in Low Lux.
