Corporate credit rating A-/Stable/A-2 Standard&Poor's said today that Tyco International Ltd.'s planned acquisition of unrated Scott Technologies Inc., a manufacturer of respiratory systems and other lifesaving devices for the firefighting and aviation markets, for $400 million in stock will not result in any change to Standard&Poor's ratings or outlook on Tyco. This transaction would broaden Tyco's fire and security product line, add recurring revenues, and offer opportunities for cost savings.