... 200m effective distance 4Chs Computer Wireless Camera SystemGeneral Description:This system is composed of 4pcs wireless camera, 4pcs receiver and ... /C/D/E optional)1) 1/3” SONY image sensor, 420/480TV lines optional, effect pixels is 752*582 ... to inquiry!! Cctv camera, ccd camera, cctv system, security system, surveillance equipment, surveillance system, color cctv camera, color ccd camera, cctv ...