Безопасность беспроводной $ 200 Система безопасности

Wireless Security Camera Features: 1) 2 parts: former-end is 4 sets of camera+microphone+emitter, back end is 1 receiver, output 2CH A/V at the same time 2) let them powered via connecting with power supply for each camera and receiver 3) you will get coherent video and synchro audio after connecting A/V cable to TV or computer 4) Apply to bank, prison, court, elevator, garden and many special conditions, suitable for ensure public security, surveillance, ward, investigate, take proof and many fields Tech Parameter: Model KDM-6431 Description 2.4GHz Wireless Camera Image Sensor 1/3" CMOS Effective Pixels PAL:628(H)*582(V) NTSC:510(H)*492(V) Horizontal Resolution 380TV Lines Signal System PAL/NTSC Lens 3.6mm White Balance Auto S/N Ratio Above 48dB Minumum Illumination 3Lux/F1.2 Electric Shutter 1/50 to 1/10,000 Sync. System Internal Emit/Receive Frequency 2400MHz-2483MHz(4 CH) Channel Frequency CH1=2414MHZ, CH2=2432MHZ, CH3=2450MHZ, CH4=2468MHZ Space Distance 500meters Power Supply Camera: 12V 1A, Receiver: 12V DC 1A Size 68*52*105mm Weight 270g Packing List 4pcs Camera, 1pc receiver, 5pcs power supply, 4pcs battery cable, 1pc A/V cable, 1pc remote control, manual, color box Brand Kadymay/OEM CCTV SystemsCCTV stands for Closed Circuit Television. It differs from broadcast TV in that its elements are directly linked (i.e. closed circuit) by cables or different wireless technologies. CCTV systems are used mainly in large public areas like: banks, malls, train stations, sport stadiums and in almost every large store. This type of surveillance system is extremely efficient in monitoring large crowds in real-time.Basic Components of CCTV SystemsThe basic CCTV system can be divided into three components: A camera, a monitor and a time lapse recording mechanism (usually made in VCR or DVR formats). These are only the fundamental components. For larger areas or for real-time monitoring you will probably need to add cameras, monitors and other special devices. For a common size household, the most suitable system is a quad cam. This basic kit consists of four wireless surveillance cameras, a small monitor and a recording device. The camera kits vary depending on their use. Some camera kits can be used on a computer, taking advantage of its monitor and memory. Others have a monitor and a time lapse VCR in the same console.Home security cameras offer reassurance in the protection of your property and family. They are easy to install and are usually a bargain when compared with the peace of mind you gain by installing them. Once again, before buying a CCTV system or a security camera it is always wise to consult a professional.Please tell me your detailrequirement then I will suggest you the most appropriate CCTV system with high quality products and economical price.Other more camera for your reference