To cover a 180° field of view, most surveillance cameras either swivel on remote-­controlled mounts, which means they can miss suspicious activity, or use fish-eye lenses, which can introduce distortions. A new camera stitches images from five inexpensive, fixed sensors–the same kind used in camera phones–into a single, undistorted 180° picture. The Ethernet-connected device is the size of a light switch and transmits video at 15 frames per second, along with a seven-megapixel still image every second or two.

Product: Digital Window D7 Camera
Cost: $600 to $1,000
Source: www.scallopimaging.com
Companies: Scallop Imaging