... digital camera 1.540TVL,auto iris,with IR-cut 2.super high focus speed 3.22x,27x optical zoom Zoom digital ... 2400/4800/9600 selectable),manual/digital auto focus,auto white balance,aotu iris,support line control ... protocol,with power cut resume function,DC12V±10%, super low power consumption Trade terms1, ... well-trained and professional engineers and staffs.5, Special discount and protection of sales ...