The ERA HD WIFI Camera+ is compatible with both the HomeGuard Pro and Invincible alarm systems. Also available as a standalone soultion if only visual detection is required via the HD WIFI Camera+ APP. Via the App, you get to see and hear what's going on in your property from anywhere in the world. The built-in microphone and speaker allows high quality two-way audio communication, and the CMOS image sensor renders sharp video footage. The camera records HD video quality at 720p even at low ligh