Features:*Consist of 4CH 1080N AHD DVR + 1*1080P AHD Camera with Normal function + 1*1080P AHD Camera with Siren function + 1*1080P AHD Camera with PIR sensor + 1*1080P AHD Camera with Gas sensor + 4*60ft Surveillance Cable for CCTV security system.*Anni fully protected combo kit, PIR/Siren/Abnormal Gas Detectors built-in the cameras, no need extra accessories, easy for DIY installation saving your money and time.*1080P AHD camera with high-stability combustible gas detector, which not only has the function of camera but also can detect the leak of combustible gas.*1080P AHD camera with PIR sensor can make intelligent judgment of human identification, effectively overcome the false alarm.*1080P AHD camera with siren function, when the siren alarm is triggered, it will alarm with loud voice prompts.*Multiple ways to access on the PC, phone and pad, can be viewed by Phone APP, browser and PC client via software, which can be downloaded by QR code on the user manual.*AHD, TVI, CVI, CVBS 4-in-1 function, support both AHD camera and analog camera input.*H.264 video compression, higher definition image and lower bit rate.*P2P cloud service for Android/IOS mobile devices remote view anywhere anytime.*Fast/Quickly playback one day's recordings with time-sharing playback.*Motion detection recording. The DVR will be triggered to record when detect something moving. NO trigger, no record, more intelligent and space-saving.*Easily installation, no need any complex installation, very convenient.DVR