Protect what you value most with the clarity of 4K and the reliability a POE NVR wired connection. The Sentinel 4K NVR security camera system offers the power of professional grade security with a simple DIY set up. Keep your home or business safe, without professional installation costs and monthly service fees with outdoor security cameras. Featuring advanced smart human detection and motion sensors, vivid color night vision cameras, bank-level encryption, a premium viewing app and free 1TB hard drive, Sentinel offers robust protection for your property. With 8 outdoor 8mp color night vision security cameras, Defender Sentinel 4K POE NVR security camera surveillance system allows you to view your property from all angles in brilliant detail for ultimate peace of mind. Ideal for a home security system or as a business surveillance system.