Sonitrol Acquires Sonitrol of Peoria Franchise

4/3/2006

Berwyn, PA — Sonitrol Corporation, the leader in verified electronic security, today announced the acquisition of the territory and operating rights of its Peoria, Illinois dealership, Sonitrol of Peoria. This acquisition is significant because it expands Sonitrol Corporation’s direct footprint in the Mid-West.

“Each acquisition we make furthers our goals of building a world-class sales channel,” said Kevin Dowd, Sonitrol Chairman and CEO. “The combination of our direct sales force, our National Account team, and our outstanding Franchise Network gives us one of the strongest channels in the industry. Strategically, this acquisition allows us to expand our direct coverage in the Mid-West region, which we have identified as a high-growth area.”

Sonitrol of Peoria Owner Stephen Knobeloch will stay on with Sonitrol Corporation through the transition process.

“We are very pleased Stephen Knobeloch will be joining the company,” said Dowd. “His knowledge of the security industry and the Peoria market make him a tremendous asset to the company. As with every acquisition we make, we will work closely with local school officials, business owners and police to ensure a seamless transition. With Stephen on board, this will assuredly be a smooth process.”

About Sonitrol:

Sonitrol Corporation (Berwyn, PA), the leader in verified electronic security, has provided integrated commercial security solutions nationwide and abroad for over 40 years. Sonitrol offers the most unique, effective electronic security protection available today including verified audio intrusion detection, managed access control, video surveillance, fire detection, and web-enabled monitoring services. Sonitrol’s one-of-a-kind audio verification capability is well known for its record of low false alarms, fast police response and the highest documented apprehension rate in the security industry. Since 1977, Sonitrol has assisted local law enforcement in the apprehension of more than 155,000 criminals. For more information on Sonitrol and its integrated security solutions, please visit the company’s website at http://www.sonitrol.com.