维基百科所有的内容都应该可供查证。请协助补充可靠来源以改善这篇条目。无法查证的内容可能会因为异议提出而被移除。 Concerning the price ranges, the DVRs as well as the XVRs are Practically the same costs which can be reasonably low-priced and count on the amount of channels. They use BNC coaxial cable, that is aged technological innovation yet again and isn't going to give electric power ... https://alarmotion.com/services/