The high performance Pro-Scan hand held security scanner is designed to meet the exact requirements of the security industry. Typical uses will include body search for offensive weapons in crowd control, airport and border security, checking parcels and letters for metal objects and anywhere that hidden metal needs to be detected. Pro-Scan operates on one 9-volt alkaline or rechargeable battery.
Comes with FREE Holster--$25 value

The presence of metal will be indicated by an audio warning tone and a red light coming on. The sensitivity is adjustable.
A .38 caliber hand gun will be detected at 7.75 inches on low sensitivity and 11 inches at optimum sensitivity.
A Pen knife will be detected at 4 inches on low sensitivity and 6 inches on optimum sensitivity.
A razor blade will be detected at 2 inches on low sensitivity and 4 inches on optimum sensitivity.