Restrictions around carry-on baggage items at airports may have been relaxed a little, but some security companies said Monday they are betting on increased demand for products that can protect electronic devices such as laptops and PDAs during air travel.

Products such as asset-tracking software for laptops, rugged carrying cases for electronic devices, stickers, locks, and anti-theft tags could find increased favor among travelers, some of whom may be forced to check in their gadgets.

Until Monday, travelers out of the United Kingdom