http://idontthinkitsgoingtorain.com/News/how-motion-sensors-function-in-today%E2%80%99s-world/ While shopping for motion sensors to secure your home, you might be a little leery about the seemingly fancy technology used. If you know more about how they work, you'll be able to make better, informed shopping decisions, and as a result end up with a safer home. While no . Fri, 18 Dec 2009 17:21:26 CST en