4CH Economical 720P SD Card MDVR

4CH Single SD MDVR, 720P, GPS/Glonass/Baidou, 4G LTE, H.264, G-sensor, WIFI, AHD camera, Mobile DVR/MDVR.

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  • Lead Time:

    Sample in 1-3 work days, big order in 7-30 work days.
Product Detail

4CH Economical SD Card MDVR

Product advantages:

TS-820 4ch SD Mobile Digital Video Recorder for Real time online video surveillance, support Video: H.264; Audio:G711A; AHD camera resolution:720P/960P, Integrated with worldwide 4G, GPS, Car recorder with singal SD card max to 256GB, CVBS*1; Besides, VGA, Intercom, G-sensor and WIFI module are optional etc, TS-820 MDVR widely used for logistics vehicles, long-distance passenger transport, dangerous goods transport, bus companies, vehicle rental, taxi and other industries.

4ch HD 720P Vehicle Mobile DVR

Product introduction:

  • 4CH video recording & playback, support 720P/960H resolution.
  • Support car drive recorder function.
  • Meets ISO7637-2 anti-electric disturbance standards. Stable positioning module and communication module for stable product stability.
  • Watermark prevents data from being tampered and ensure the veracity and the legal efficiency of the data.
  • Network function: Supports breakpoint resume, which can realize remote video surveillance, video download, remote alert, network timing, network setting and remote upgrade.
  • Device upgrade: Support local upgrade and remote upgrade(OTA).
  • Support multi-center access, with strong scalability.
  • Dynamic transmission: self adapt 3G/4G network bandwidth dynamic changes to improve video stream consistency.
  • With mini size (117×137×30mm), ranks the top of the industry, facilitating freight and installation.

Product Feature:


Equipment parameter

performance standard


Operation System


Operation Interface

Graphical menu operation interface

File System

TES error correction encryption file management system


Video Input

4 Chanels 720P AHD

Video Output

1 CH PAL/NTSC output 1.0Vp-p, 75Ω, CVBS;1CH VGA output extensible

Video Display

1 CH/ 4 CHs

Video Standard

PAL: 25 Frames /Second; NTSC: 30 Frames /Second

System Resource

PAL: 100 Frames; NTSC: 120 Frames


Audio Input

4CHs independent input, 600Ω

Audio Output

1CH output, 600Ω, 1.0-2.2V

Record format

Synchronized video & audio recording

Audio Compression


Digital processing and storage

Video Compression


Image Format

PAL :4*720P(1280*720)、NTSC : 4*720P(1280*720)

Image quality

1-8 levels adjustable (1 is the best)

Video Bit-rate

192K-4M bps(each channel)

Video storage

85M-1.8G Byte/hour(each channel)

Playback Resolution

PAL : 1or4*720P(1280*720)、NTSC : 1or4*720P(1280*720)

Audios Bite-rate

4KByte/s(each channel)

SD Card slot

1pcs SD card storage, Support 64GB/128GB/256GB


Alarm input

4CHs independent alert input(activated by high/low voltage)

Alarm output

1CH alert output extensible

Motion detection

High/middle/low sensitivity adjustable


HOST interface

1 USB2.0 in front panel



1 RJ45 optional


Buitl-in WiFi module optional(support IEEE 802.11b/g/n )


Built-in FDD-LTE/TD-LTE/WCDMA/CDMA200 module optional



Built-in GPS/ GLONASS module optional


2 TTL_UART output(can be RS232 or RS485)








Built-in G-Sensor module optional


Power supply and consumption

DC9-36V 5% ≤12W

Operating temperature/humidity

-40℃~+70℃ / ≤80%




0.4KG/ unit


0.8KG/ unit

Product Size:

Product Application:

Mini dual SD MDVR can work in mini bus, truck, forklift, etc. require up to 4 cameras.

H264 4ch AHD 720P Bus Mobile DVR

4ch AHD 720P Single SD card mobile DVR


1: MDVR does not start?
a: Please check the power supply of the host to see if the power of the host is connected correctly and whether there is real voltage to the host
b: Whether the key switch of the host is locked
c: Whether the ignition control line of the host is connected properly,
d: whether there is a control voltage input (when testing in the office, the ignition control line is directly connected to the positive pole of the host power input)

2:The hard disk video recorder automatically restarts after a few minutes of startup or often crashes?
a: Input voltage is unstable or too low
b: The hard disk wiring is loose or poorly connected
c: Hard disk has bad sectors
d: Poor heat dissipation, too much dust, and the machine operating environment is too harsh
e: Inadequate installation of anti-vibration facilities

3:The remote control does not work?
a: Check the power section on the remote control
b: If the hard disk is installed, check whether the hard disk is inserted in place

4:Can't enter the settings menu?
The TESWELLTECH factory default of this machine is to automatically record when the system is started, unless it is manually stopped or the system is powered off;
to enter the setting menu, you must first stop the recording with the stop button on the remote control, and then press the menu button to enter.

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If you are interested in our products and want to know more details , please leave a message here , we will reply you as soon as we can.