4 Channel Video Input,4 Channel Audio Input, 
Support CIF,HD1,D1(3 channel D1)
H.264 Compression
Support Alarm Input,Output; RS232,RS485 expansion.
Support 3G Monitor, GPS Track
DC8-36V,suitable to all the vehicles

Project	Specification	Feature
System	Lanuage	Chinese/English
	Operate System	Linux
Video	Video Input	4 Channel Video Input ,1.0Vp-p, 75 Omega
	Video Output	1 Channel RCA Video Output ,1.0Vp-p,75 Omega
	Video System	NTSC/PAL
Audio	Audio Input	4 Channel Audio Input
	Audio Output	1 Channel RCA Audio Output
	Audio compression	ADPCM
	Video resolution	D1/HD1/CIF
Expansion Interface	Storage	Support 2T Hard Disk,128G SD
	Alarm Input	4-level input
	Alarm output	2-level output
	Serial interface	1 RS232 & 2 RS485
	3G Module	Built-in 3G (EVDO,CDMA2000,WCDMA) optional
	WiFi  Module	None
	GPS Module	GPS and G-Sensor built-in
Power	Power input	DC8V ~ 36V
	Power Output	4 Channel DC12V 2A
	Power consumption	about 20W
Other
	Size	24.5x22.6x8CM
	Weight	1.2kg
	Operating Temperature	-25℃~ +85℃