Innovative Thermal-Sensing Motion Detection Technology Swann's True Detect PIR Thermal Sensing technology detects motion by heat, such as from people & cars, to trigger recording and push notifications. This virtually eliminates false triggers, like plants moving with the wind, to only capture events with security relevance. Get amazing image definition with 4K, which is 4x better than 1080p Full HD (2MP). Zoom in closer with incredible clarity to license plates, facial features and clothing patterns. Cameras The 4 IP security cameras NHD-885 come with Ethernet cables and are weatherproof, built tough for the outdoors or indoors. See in the dark up to 130Ft/ 40m with the camera's powerful infrared night vision. Enjoy easy camera installation with Power over Ethernet (PoE) as each camera is connected via Cat 5 network cable to transmit power, video and audio. Smartphone Integration The HomeSafe View app ensures you'll always be connected to your home or business, allowing you to see your cameras on your smartphone or tablet, live or playback, from wherever you are in the world.