| Network Camera I-520 (521(outdoor))Built-in 22X Day/Night Camera Dual Streaming - Built-in 22x Day/Night Zoom Network Dome Camera- MPEG4/MPEG4Plus/JPEG compression, 704x480 Resolution, up to 30fps@704X480- Efficient Bandwidth by MPEG4 compression and Multi-streaming- Dual-Streaming, MPEG4Plus based video and audio for each input - Bi-directional Audio Communication- Remote Realtime Monitoring by PC, PDA, Mobile Phone - Combined with NVR, monitor, record, alarm, and control the Sites easily at local orremote- Private/Dynamic/Global/Static IP Support including Plug & Play, DDNS- 22x Optical Zoom with 10x Digital Zoom (220x Total Zoom)- Low light by Day/Night with electronic filter or Digital Show Shutter- 0.01lx at Digital Slow Shutter,0.1lx at Day & Night mode- 6.6 inch Anti-Vandal Bubble- Up to 180' /sec pan & tilt speed (preset recall speed)- UP to 6-group Tour and 64 programmable presets, Auto-pan- Support RS-485/422 protocols- Accepts select multi protocols Network Camera I-530 (531(outdoor))Built-in 27X Day/Night Camera Dual Streaming - Built-in 27x Day/Night Zoom Network Dome Camera- MPEG4/MPEG4Plus/JPEG compression, 704x480 Resolution, up to 30fps@704X480- Efficient Bandwidth by MPEG4 compression and Multi-streaming- Dual-Streaming, MPEG4Plus based video and audio for each input - Bi-directional Audio Communication- Remote Realtime Monitoring by PC, PDA, Mobile Phone - Combined with NVR, monitor, record, alarm, and control the Sites easily at local or remote- Private/Dynamic/Global/Static IP Support including Plug & Play, DDNS - 27x Optical Zoom with 10x Digital Zoom (270x Total Zoom)- Low light by Day/Night with electronic filter or Digital Show Shutter- 0.01lx at Digital Slow Shutter,0.1lx at Day & Night mode (Min. Lux : 0.03)- 6.6 inch Anti-Vandal Bubble- Up to 360' /sec pan & tilt speed (preset recall speed)- UP to 6-group Tour and 128 programmable presets, Auto-pan- Support RS-485/422 protocols- 180' of Auto Flip to follow objects- 4 Alarm Inputs and 1 Relay Output- 6 Privacy Zones to adapt to zoom ratio | 
