If you're interested in the 4ch 720p ahd mdvr with bus passenger counting sensors, welcome to contact our factory. As one of the professional China manufacturers and suppliers in this field, our company has passed the CE certification. Please be free to get the high-quality solutions and system with us.
OSD with mouse and remote control
2-level management for user password, administrator password, supporting encrypted transmission
High/low electric level trigger
Video and Preview
Video Input, Output
4-channel video input, 1channel video output; 1.0Vp-p, 75Ω
Character superposition function, information superposition of time and date, device ID and GPS, etc.
Video Compression Format
Compression coding. Applying Hisilicon hi-performance processor.
Preview of 1-channle, 4-image stitching, supporting full screen triggered by event and switching of stitched images
PAL: 100 frames/s, up to 25 frames/s per channel; NTSC: 120 frames/s, up to 30 frames/s per channel
AHD 720P，D1, HD1 ,CIF 4channel
Grade 1 to grade 8 for selection (1 is the best)
CIF: 300Kbps ~ 1.2 Mbps, 8-level bit rates for selection
HD1: 500Kbps ~ 1.5 Mbps, 8-level bit rates for selection
D1: 600Kbps ~ 2Mbps, 8-level bit rates for selection
720P: 800Kbps ~ 4Mbps, 8-level bit rates for selection
Audio Input, Output
4-channel input, 1-channel output
Supporting one 2.5” hard drive and one SD card, which supports up to 128G, supporting data redundancy storage technology;
File Format/ System
Special file system
Recording at startup by default, supporting timed recording, recording triggered by alarm and event, as well as manual recording
Searching by time, type, storage device and other conditions
Supporting playback on local device, supporting synchronous playback of up to 4 channels and analysis on vehicle information in the files
Supporting fast forward, fast backward, play and pause, supporting fast forward and fast backward at 2x, 4x, 8x and 16x speed, supporting file play from selected time
Counter Shelter Alarm
Alarm alert sent to platform, stored in Harddisk and saved in server when camera is sheltered
Alarm Input/ Output
8-channel on/off signal alarm input, 2-channel on/off signal alarm output
duration of recording after alarm can be adjusted from 10s ~ 999S
Storage Space Alarm
Supporting settings for alarm of storage space
GPS overspeed alarm, acceleration alarm, motion detection alarm
Wireless Transmission (Optional)
Supporting external GPS
Supporting PTZ control realized by local;
Supporting 1 RS232 ports ,1 RS485 port
Antenna interface with embedded GPS
Standard RJ45 interface, with indicator.
Compatible with commerciall avaiblable brands.
Supporting parameter configuration functions for mobile DVR coding channel;
Supporting SD card, hard drive upgrading and remote upgrading
0 ~ 2V
Vehicle Key Signal
Vehicle key off.
Vehicle key on.
Video Input Impedance
Impedance of 75Ω for each channel of video.
Outputting a 1Vp-p CVBS analog signal.
Power Supply and Power Consumption
1. ACC on/off
2. Hard drive lock on/off
3. Delayed shutdown
4. Timed on/off
DC:+9V ~ +36V. The device will be automatically turned off and enter the protection mode if the voltage is lower than 8V for a long time; if the voltage is higher than 36V for a long time, the voltage protection device will block the power supply.
With patented UPS power supply continuous working technology, it can work for 3~5 seconds after external power supply is cut so that the intactness of video data can be kept upon sudden power failure
<10W in normal operation; <0.5W in standby mode
Normal: 0℃ ~ +60℃; upon hard drive preheating: -25℃ ~ +60℃
10% to 95%
160(W) x62(H) x200(D) mm.
Net: 3500g, Gross: 5000g