Video Standard	NTSC 60 fields/sec + PAL 50 fields/sec
Video Resolution	NTSC:720*480 pixels  PAL:720*576 pixels
Video Inputs	4 x BNC channels 1.0Vp-p composite 75 ohms
VCR Input	1 x BNC channels 1.0Vp-p composite 75 ohms
Video Outputs	2 x BNC channels, 4ch looping
Display Modes	Quad screen PIP screen with one overlay channel PIP screen with dual overlay channels POP Dual-channel split screen  Full screen for single channel Auto channel sequence switching Zoom Freeze
Ambient Temperature	-30degree  ~ 60degree
Power Supply	AC Input: 100-240V 50/60Hz DC Output: 12V, 1A