PHOENIX -- As the immigration debate continues to heat up in Arizona, the Border Security Expo makes a stop at the Phoenix Convention Center this week.

For the next two days, more than 100 companies will display the latest ways to keep the border safe.

Organizers said they expect about 1,000 officers from local, state and federal departments to attend, including sheriff's offices, U.S. Marshals, D.E.A., I.C.E., and the U.S. Border Patrol.

Bob Codney, an exhibitor at the event, showed off some high-tech radar equipment sure to impress attendees.

"The radars are out there, 24 hours a day, seven days a week looking for people crossing the border illegally," he said.

It's the expo's fourth year, and second in Phoenix.

It is not open to the public.