COFDM Wireless Video Receiver 4Ch with DVR

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Item specifice:

Brand Name: Safe Guard Model Number: SG-CH4 Frequency: 300-800MHz/1.2G/2.4G/5.8GHz (optional)
Memory: 60G/120G, 4 channel 48 hours recording LCD monitor: 17 Customization: All features can be changed as your prefer!
Data encryption: AES / ALLTECH Basic scrambling Voltage: AC220V±20V, DC14V~DC16V Size: 520*430*210mm
Weight: 22kg Bandwidth: 2/2.5/4/8MHz (adjustable)

Product Description:

Model: SG-CH4

1) MPEG-2 video compression, DVD video quality; 
2) Modular design and highly integrated
3) 17" Standard samsung LCD screen;
4) Built in with 60G SSD memory;
5) Support 4 channels 48 hours continuously recording;
6) Can support RS485/RS232 and av signals transmission simultaneously;
7) Nobody can steal your video and audio because of its data encryption.
8) NTSC/PAL automatically adapt, support user adjustable;
9) Supports high-speed mobile NLOS ( Non Light Of Sight ) reception;
10) Adjustable working frequency,bandwidth,RF power and etc.
11) COFDM modulation, Stable signal reception;
12) Can custom made with HDMI/SDI hd interface output;

COFDM Wireless Video Receiver 4Ch with DVR

This picture is just for your reference, we can custom made different functionalities according you needs. 

Product Parameters


300-800MHz/1.2G/2.4G/5.8GHz (optional)


 60G/120G, 4 channel 48 hours recording

LCD monitor 


 RF Level Input


RF Interface


AV output




Power supply

AC220V / DC12V


2/2.5/4/8MHz (adjustable)



Data control interface

Standard RS232/RS485/TTL level,9600,8,N,1

RS232/RS485 data interface

Standard RS232/RS485 level, support 1200~115200


1/2,2/3,3/4,5/6,7/8 (optional) 

Guard Interval 

1/32,1/16,1/8,1/4 (optional) 

Video Output 

1 line PAL/NTSC analog video 

 Video Decoding

 ISO/IEC13818-2  MPEG-2MP@ML


720×576(PAL) , 720×480(NTSC) 

Lines of horizontal 

625 or 525 Line 

Audio Output 

Analog stereo left and right channels 

Data encryption 

AES / ALLTECH Basic scrambling 


AC220V±20V, DC14V~DC16V

Work environment


Built in Battery

30000mA, support 4ch 48 hours recording





Product Application

COFDM Wireless Video Receiver 4Ch with DVR

COFDM Wireless Video Receiver 4Ch with DVR

COFDM Wireless Video Receiver 4Ch with DVR

Our Services

One year free warranty;
Three months for free spare parts (Replacement parts will be charged after a year);
24-h technical guidance;
One-stop ODM/OEM solution;
We provide professional system design and construction;
We have over 15 years experience's study, design and manufacturing in wireless microwave transmission area;
We are the professional plant source,so we can provide you high quality in best price.

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Q:Every day, mainly engaged in monitoring and installation, there are other security products
Do not have to become a wealthy businessman, the security will be more and more, the computer age, monitoring purposes will be more and more widely
Q:Installation process of security monitoring system
5, the construction of smaller quantities, it is best to install the back-end equipment, the installation of front-end equipment, synchronous debugging.When the construction capacity is large, the front end equipment is usually installed and the equipment is debugged after the installation of the back end equipment.6, after the initial inspection, debugging through trial operation, the control organization design approval.
Q:What projects does security monitoring mean?
Camera monitoring systemAccess control systemBurglar alarm system,Video monitoring system
Q:What categories of security assets is the security monitoring system?
According to the current enterprise income tax law, the contents are as follows:(a) housing and buildings for 20 years;(two) aircraft, trains, ships, machinery, machinery and other production equipment for 10 years;
Q:I would like to do promotion in Baidu, my product is security, how to do, specifically how to charge?
Do you want to make keyword bidding? You can contact Baidu. Our 51 security mall website has also done, depending on your key words bid. Specific Baidu customer service will help you answer, my bid is not high, only a few dollars a day to spend.
Q:What data does security monitoring and bidding require?
2, the tender must be issued as follows documents or copies of documents:(1) People's Republic of China industrial and commercial business license;(2) tax registration certificate;(3) legal person's power of attorney;
Q:What are the grades of security monitoring enterprises?
So, the new company needs never to start grading or start applying at level three. Last time, Guangzhou Bo Hao to help us apply for an undetermined level, after the upgrade, we are assured to give us help to apply
Q:Security monitoring sales method,Security monitoring sales, first of all, they will install,
The overall marketing methods of security products include supplier marketing, distributor marketing, final customer marketing, and staff marketing.
Q:How much is the security monitoring business profit?
Monitoring business profit margins is roughly divided into three parts:1, security project construction, here moisture is relatively large, from 50%-500% Maori have, it depends on all kinds of relations tangled together, you know, Chinese people do engineering projects, no honest, just see how the money.
Q:What is the quality standard of security monitoring products?
Quality standard of security monitoring products:Relating to the technical standards and specifications (including the design standards and specifications, product standards and specifications, engineering standards and specifications, acceptance criteria and norms) must comply with the relevant laws and regulations of People's Republic of China, regulations, standards and technical specifications (but not limited to those listed):Code for design of cigarette factory (YC/T9-2006);Code for fire protection design of buildings (GB50016-2006);Standard for intelligent building design (GB/T50314-2006);Code for electrical design of civil buildings (JGJ16-2008);Code for engineering design of integrated wiring system (GB50311-2007).

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