TomTop offers the Owsoo 10.1" 4-Channel 720p WiFi NVR Security System Kit in White for $119.99 with free shipping. That's the lowest price we could find by $30. Features include:
  • 10.1" LCD monitor
  • 4 720p indoor/outdoor IP cameras
  • remote viewing via a mobile device
  • night vision
  • motion detection recording and email alerts
  • 802.11n wireless with dual antennas
Note: A hard drive is not included. (It supports up to 4TB.)