Powerful WiFi module (support 802.11b/g/n) can manage and control video uploading from MDVR. People will don't worry about the labour to copy large data every night. By the help of our CMS, users can download any recordings or logs saved in server. Just spend several minutes to download and playback the recording when you travel in the world. Features H. 264 video compression for high quality low storage needs and longer recording D1 (720*576, NTSC, 704*576, PAL), QCIF/CIF/HD1selectable. 4CH video and 4CH audio input, 1 video / audio output Ultra compact extruded aluminum housing, light and vibration resistant Embedded Linux operating system & On Screen Display menu 1* 32G SDHC card at most( Class 6/10) PC-based FAT 32 file system Frame Rate per channel: (PAL) 1-25fps; (NTSC) 1-30FPS Live video & audio surveillance and tracking in Google Map Support for Wi-Fi for wireless transmission (optional) 4 alarm inputs with selectable pre-alarm and post-alarm recording Interior, 3-axis, inertia trigger of video-matched motion events (for accidents) Support for RFID, Police Detection Radar, Pan Tilt Zoom (PTZ), etc. CMS support for video management, Live Tracking large fleet management, etc. Easy to use PC-based MDVR Player for playback and AVI conversion Video event search software allows intelligent searching of video based on event 8-36V DC input adaptive, 12 DC output for cameras Broad temperature operating range: -25Degree ~ +85Degree( optional heater) System Language Chinese/English Operating system Linux Video Video input 4 CH Video output 2 CH RCA Signal system NTSC/ PAL Audio Audio input 4 CH Audio output 1 CH RCA Audio compression ADPCM Video resolution D1/HD1/CIF Local-storage 2 SD cards, max 64GB for each Playback format One window/ four windows Alarm input 6 CH Alarm output 2 CH Built-in Modules Optional GPS GPS module WIFI 802.11b/g Extended Interface Serial interface 1 RS232 & 2 RS485 CANBUS 1 SPEED interface 1 Speed sensor Power & Consumption Power input DC8V ~ 36V Power output 4 channel DC12V 2A Consumption 6W-12W General G-sensor Built-in G-sensor module Dimension 180mmx138mmx45mm Weight 0.9kg Operating emperature -25 degree~ +85degree Trademark: AWE Model NO.: SD-3004 Productivity: 5000000/Month Unit Price: Negotiable Shipment Terms: FOB Payment Terms: Western Union Minimum Order: 10 Sets Price Valid Time: From Aug 17,2011 To Sep 17,2011 Origin: China Function: WiFi Certification: CE Type: Car DVR Export Markets: North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe