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Starwood Hotels & Resorts Worldwide Inc.

Starwood hotels expand keyless locks on hotel rooms

Starwood hotels expand keyless locks on hotel rooms

The keyless experiment was a success.

That is the only conclusion to be drawn from the announcement that Starwood Hotels and Resorts is expanding the use of technology that lets guests use their smart phones to open their hotel doors.

Connecticut-based Starwood tested the technology at 10 hotels in 2014 and has now expanded it to 130 hotels and resorts in 30 countries. Earlier this week, the hotel firm said it was installing the technology in select Le Meridien, Westin, Sheraton and Four Points properties over the next few months.

To open a hotel room using this technology, guests must be enrolled in the Starwood loyalty program and must download...