The Night Owl 16CH D1 DVR Security System is an advanced 16 channel, 16 camera Security System that includes a pre-installed 1TB hard drive. The cameras are hi-resolution with 600 TV lines and 50FT of night vision capabilities. Unlike other security systems Night Owl enables you to maintain your mobile lifestyle by giving you tools that allow you to remotely monitor your home or business with our exclusive Night Owl Pro App. Receive motion activated email alerts to your Smartphone when the sensors detect activity. Our products are fully controllable via your tablet and/or Smartphone device.