A great introduction to DIY home security
Arlo Pro cameras (midrange among the Arlo, Arlo Pro 2, and Arlo Ultra) aren't the cheapest home security cameras, but they're far from the most expensive, and they're very versatile. I bought this one as an add-on to my existing system, which started with a base station and two cameras.
Each camera is IP65 weather resistant and has infrared LEDs for nighttime recording; batteries you can recharge via USB or with an external charger; pass-through for power from an AC outlet; complete control from anywhere that has internet access; and 2-way audio communication. The camera is mounted via an included magnetic mount, which is really strong. You can also use any third-party mounting system with a standard tripod thread connector. It's compatible with a variety of third-party software and systems like IFTTT, SmartThings, Stringify, Alexa, and Google Assistant.
You can set each camera to record based on audio or motion detection, enable detection based on a schedule, or based on geofencing (when your cell phone leaves a specified GPS location). You can trigger a siren directly, or based on detection rules. You get free cloud storage of the past 7 days of triggered recordings (more if you subscribe), and you can attach USB devices to the base for automatic backup. You can enable rules-based email or text notifications. There's much more, and from my experience so far, everything works as advertised.
Verified purchase: YesCondition: Pre-owned