He looked about, and then bounded off, jump jets screaming. "I will be back in twenty. Max. And with the emergency entrance location. If this scientist had even a lick of sense, I mean."<br/><br/>The sensor could penetrate up to about ten feet of solid material, and any sort of metal wiring or other unusual bits would show up to the scan. The scanner had a range of about one hundred feet, so he could start at the middle and work his way outward.