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:Enterprise security monitoring workflow
Work flow: construction site survey - Design Scheme - contract signing - the implementation of the construction (specific two aspects of consultations)
Q:What's the profit of security monitoring project?
But profits in about 30% can do, but after a year, or included in the 30% from inside it is hard to sayThe investment is approximately as follows:Pavement decoration twenty thousandAbout five thousand of the sample facilities (CCTV, TV and video host), one for computer monitoring and one for acquisition card;About five thousand samples (all types and accessories, accessories should be complete), commonly used models must be properly prepared...
Q:Want to open a small security Monitor Company, but heard people say no qualifications, no project, no one assured me of the project
You can start doing some kind of small projects, such as supermarkets, shopping malls and so on, until a certain stage, you will find a security company relatively good strength and anchored in their company, so you can use their qualification to undertake the project, concrete project amount to refer to their company's qualification, and you can how much!
Q:What is the front end product of security?
The front part of the finger detection signal input devices, such as camera, microphone and so on, so it is not difficult to understand what is the end product.
Q:Begged, "security monitoring" for the record, where do you need to go? What materials need to be prepared?
System design, construction and maintenance qualification numberThe reporting unit trial system project in time, should be attached to the following materials (A4 size are used):(1) the letter of entrustment or the design task book of the system construction unit;(two) contract or agreement (copy);
Q:What's the difference between security and surveillance?
Security refers to security and protection, including infrared alarm system and access control, monitoring and so on.
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 does security monitoring mainly do?
In the monitoring video capture at the same time, with a variety of anti-theft accessories combined to achieve anti-theft alarm triggered. When the door is magnetic, infrared detectors or other detector signal is detected, an alarm signal to the camera transmission, then camera video will be transmitted to the user, or directly generate an alarm signal to the head of the household, police or property, to achieve timely alarm detection function.
Q:Security monitoring sales method,Security monitoring sales, first of all, they will install,
Security monitoring sales, first of all, they will install, you must understand the overall situation and trends in the security industry, as well as product features and advantages, and more security vendors, technicians communicate.
Q:Will security monitoring work be dangerous?
Generally nothing to do, monitoring contacts are weak, electricity, the work environment is generally not too bad

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