Surveillance DVRs are designed for continuous operation as part of a 4-channel DVR, 8-channel DVR, and 16-channel DVR security system. All digital video recorder options feature H.264 compression and motion detection recording to maximize the amount of surveillance video you can store. They also feature multiplex operation so you can live view, record, play back, and back up your video simultaneously. Our security DVR recorders can be viewed remotely over the internet and via a free smart phone app so that you can keep an eye on your business or home from anywhere.