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.)