99View at Amazon$249View at WalmartSee all prices 28 found?These days, Nest is part of Google, and the company has expanded into home security with Nest Secure. This is sold as the Nest Secure alarm system, commanding a premium fee of $399, and it includes a base station, two Nest Tags, and two sensors. The Nest Tag is a key fob style device that can arm or disarm the system when in proximity with the base station – other options for arming include a passcode, Google Assistant, and the Nest App. The sensor is Stick Nest Detect, which is a versatile piece of hardware, as each one can be used to secure a window, door, or even a wall, as it detects motion, with additional sensors available for $49. All of these sensors feed their information through the base station to the Nest App. Nest Secure works over Wi Fi, but cellular access as a backup is a $5 additional monthly option. The system can also be expanded with options for indoor and outdoor cameras, and compatible Yale electronic locks. While this system is designed to be used for self monitoring through the Nest App, there is also an option for professional monitoring via Brinks Home Security for $29 monthly, or $19 monthly with a three year contract more about that later. You can sign up for Nest Secure hereImage Credit: AbodeImage credit: Abode4. AbodeDIY professional grade home security$279 View at AmazonCheck WalmartSee all prices 2 found?Affordable professional monitoring optionFull variety of additional accessoriesFew items in starter kitAbode offers a security solution that is professional grade, and yet easy to install for the homeowner. Like its competition, the company offers a starter kit that includes the essentials: a gateway, a mini door/window sensor, a remote key fob, a motion sensor, and a security sticker – that package retails for $299.