TOP 3 Wireless Home Security Systems You Can Install by Yourself

1-Arlo Pro 2 Security System

The Arlo Pro 2 security system is arguably the best of its kind. It consists of a wireless camera module and a base station with a powerful 100-decibel siren. You can connect multiple cameras to your existing Arlo Pro as 2 your needs change, too.
Even though they look just like their predecessors, the camera modules of the Arlo Pro 2 have been upgraded to capture Full HD video (up from standard HD on the original), allowing you to keep an eye on your home in even higher resolution. If you already own an Arlo Pro, you can simply purchase the new camera modules and add them to your existing system.
Once set up, the Arlo Pro 2 can send you notifications or even activate the siren if it detects motion or unusual sound. A sleek mobile app will help you install and control the security system.
The Arlo Pro 2 camera module is weatherproof, so you can use it outdoors as well. Its rechargeable battery can last for months, and night vision and built-in two-way communication are also on board. Every camera comes with a magnetic wall mount, and you can purchase additional ones for your ceiling or outdoors.
The Arlo Pro 2 comes with a week's worth of free cloud storage for videos (you can also store your footage locally in the base station via a USB stick), as well as support for up to five cameras. You can grab up to 60 days of storage and up to 15 connected cameras for $150 per year, or 10 cameras and 30 days of storage for $100 annually.
Bottom Line: Quite possibly the best option out there. 

 
2-Blink Home Security Camera System 

The Amazon Alexa-compatible Blink Home Security camera system is a great low-cost, low-maintenance option, which consists of a compact connectivity module and a completely wireless HD camera. The latter is powered by a couple of AA batteries, which can last for up to two years. 
An outdoor model of the security camera is also available. Dubbed Blink XT, it adds weatherproof construction and night vision to the features of the regular Blink camera. You can combine both modules in your home setup if you wish.
Blink Home Security can automatically detect motion and send you alerts or allow you to stream a live view of your home in its smartphone app. You can expand the number of connected cameras depending on your needs — Blink offers larger bundles or standalone units. 
The coolest thing about Blink Home is that you won't need to pay extra for cloud storage. You get two hours worth of cloud storage, which is good for more than 1,400 5-second clips. When you reach the limit, Blink will automatically erase the oldest clips to clear space.
Bottom Line: Affordable price and low-maintenance, but no two-way audio. 
 
3-Ooma Home Security Starter Kit

The Ooma Home Security starter kit includes a Telo communications device with home phone service and one motion sensor. You can easily add door and window sensors to the system, as well as a water sensor to alert you in case of flooding.
Ooma Home Security can send you mobile notifications in case its sensors detect motion, and it can even alert your local authorities. Expanding the system with more sensors is fairly inexpensive — a door or window sensor costs $25, a motion sensor goes for $35, and the water sensor will set you back $30. Overall, the security system is a great option in its price range, so long as you're willing to live without cameras.
If you use the basic Ooma subscription, you'll be able to use one wireless sensor for free, or unlimited ones for $6 per month. A premier plan for $10 per month comes with unlimited sensors and home phone service, as well as the ability to alert the authorities while you're away.
Bottom Line: A great selection of sensors, but no video camera option.