Robert Delamar, CEO of First Responder Technologies, says the Rutgers research is a "very impressive feat of engineering." He likens the technology to radar. The WiFi signal is transmitted around the area being protected and when it is reflected off of a suspicious object it can alert security personnel.
First Responder says there are advantages to using WiFi instead of millimeter wave technology currently in use at many of the nation's airports. The WiFi system uses a lower frequency for better penetration of clothes, cases, and packs; there is no need for an FCC operating license to use it; and there are no known health risks, the company says on its website.
The inventor of the WiFi weapon detection technology, Yingying (Jennifer) Chen, a professor at Rutgers, believes it's a "game changer" for the security profession. "The cost will be much lower than X-ray-based systems," she says on a First Responder Technologies' video. Because of the lower cost, Chen says more facilities will have better security. "Public safety could be significantly improved," she says.
The WiFi signals can be used to detect cans, laptops, batteries inside bombs, and liquids as well as guns. But Delamar says his company's primary focus at the moment is developing a practical tool for detecting guns in areas where they should not be, especially long guns.
He envisions the system augmenting other security measures at schools and other public buildings. The First Responder system would not require additional security personnel and it would not inconvenience the public. "It will produce a detection field that people can walk through," according to Delamar. "It could look like fence posts around the building, so it's relatively inconspicuous," he explains.