... .3 pcs array LED 3.RS485 interface 4.50m IR distance 5.p2p IPNP, ONVIF 2MP HD Array P2P ... * support client monitoring, high-definition millions of graphics, remote/local monitoring, remote/local namely, When video, instant screenshots, character superposition, ... lens, lightning protection anti-interference anti shear technology * 30-45M IR distance * DC power supply, the system work high stability ...