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:Security monitoring.The security monitoring platform often appear. How to deal with the phenomenon?
You say. In replays? If so, then your video settings are set to motion detection, and you go to the video settings instead of the timer settings.
Q:District security monitoring center layout?
3, the residential area monitoring center should be equipped with reliable wired and wireless communication tools, when the police situation, should be able to quickly and the scene of the crime and external contacts.4, residential quarters monitoring center and residential district management center merger.
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:Security products, smart home, which prospect is better?
You don't know anything about the two items, are you ready to do that? Business is hard to say. No matter what you do, the market survey analysis is essential, product positioning, store location will directly affect the store sales
Q:What's the outlook of the security industry?
The process of technology development in security industry:We use graph to describe the general development process of security technology in the last forty years.The graph briefly describes the technology development process of the security industry in the past forty years, and analyzes the basic five sub industry cameras, pan tilt lens control, video recording, information transmission, detection and alarm. These five sub sectors are listed horizontally. And vertical is along the track of time, from 70s security industry just started in the era, until now, to the end of 2011 security Expo express the trend.
Q:What are the security monitoring devices? Where can I get a reasonable price?
3. car anti-theft alarm system:Vehicle anti-theft alarm device and vehicle anti robbery alarm network system.4. alarm system entrance and exit control equipment:Apparatus and system comprising target identification, information processing, control, and execution.This type of products mainly refers to system products, in addition to electronic locks, other single products such as IC cards, fingerprint locks are not included.
Q:What industry does security belong to?
Security protection system (SPS) Security & protection system, in order to safeguard social and public security, the use of security protection products and other related products constitute the intrusion alarm system,
Q:What are the main contents of the management of security facilities in rural credit cooperatives?
The duties of seventeenth security guards.All outlets shall establish security guards. The security personnel shall take turns by the counter personnel of the business network and assist the head of the network in the security work before, during and after the shift. Its main responsibilities are:(a) the units of the security work, to assist the unit leaders to strengthen the ideological education of workers safety education and fire education, organize workers to seriously study the spirit of the relevant documents and case notification, and improve the safety awareness of workers.(two) work business, duty security officer to supervise the work of the alarm system, location of safety facilities, communication tools, fire equipment and other equipment is normal and self-defense weapon for serious examination, find fault or abnormal situation in a timely manner to the relevant departments or leaders report, identify the reasons, troubleshooting, eliminate hidden dangers, and related records in a timely manner.(three) during the work, duty security officer to supervise the staff with locking office side door, put the weapon for self-defense; warm reception supervisor or the public security organs of the inspection personnel, check personnel work permits, identity cards, letter of introduction and earnest entourage, after confirmation, let the inspectors to enter the operating room to carry out the inspection, but not let the non system (including public sector) to enter the warehouse check. After the examination, we should seriously listen to the opinions of the inspectors and record them carefully, and report them to the unit leaders in a timely manner. (the presence of the unit leader is handled by the unit leader himself).
Q:Security monitoring plan how to draw? Please expert advice!! Urgent!
I drew some simple pictures before. Make the floor plan first, then insert the camera icon, and have a walking map. In the lower right corner of the diagram, you should have a legend!
Q:Do you have a safety monitoring system?
Yes, all exhibitions are sold with Jing equipment. The general public can buy it at an exhibition.It is equipped with cameras and microphones, designed as tie clips, glasses, buttons, like samples.Video storage and batteries are designed to be radio sized and can be attached to a belt.

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