"In closed offices we will use a motion sensor, and in open spaces, a light sensor," he said.
The starter kit, which costs $200 and is available at lasershield.net, includes a motion sensor and keychain remote.
The 3DS will also include a motion sensor and a gyro sensor, similar to technologies included in the Apple iPhone 4 announced last week.
Bruce Mungiguerra, the director of consumer sales for Monitronics, said that a basic home security system, with three door or window sensors, a motion sensor and an alarm panel, would cost about $100 installed.
Push a button or trigger a motion sensor and the fish moves its head, tail and mouth while singing "Don't Worry, Be Happy" or "Take Me to the River".
In the car on the way to Katonah, Urata remarked that although Theremin built one of the first electric instruments, and also invented an early version of the television, a motion sensor, and, later, for the K.G.B., an ingenious electronic listening device that helped touch off the Cold War, he somehow managed to remain obscure.
It also has motion sensors and accelerometers," says Dr Kaiser.
For decades, tunnels have defied detection by satellites, motion sensors, and thermal imaging systems.
There were motion sensors and an alarm system, but the electricity supply, Lewis said, was dodgy.
A computer controls the resultant balancing act, using a series of motion sensors and gyroscopes.
For decades, security companies have been wiring houses with central nervous systems of motion sensors and computer controls.
