Lorex 4K Smart Deterrence Wired NVR Security System with Smart Sensor Kit, White (Certified Refurbished)By combining Lorexs latest N844 Series NVR, eight 4K Smart Active Deterrence cameras, and Smart Sensor Kit, the Lorex 4K Smart Deterrence Wired NVR Security System in White will provide you with the highest quality recording and the smartest features to protect your property. Featuring Smart Motion Detection Plus (either Face Detection or Smart Motion Detection), Active Deterrence LED lights and siren, and two way talk audio, this system is designed