Guest sensors have been fitted in Hotel 1000 in Seattle that monitor when a guest enters and leaves so that lights and other technology in the room can be switched on and off accordingly.

“客人传感器”：西雅图的Hotel 1000酒店装有“客人传感器”。利用这个装置，可以在客人进入和离开房间时，控制室内的照明设备和其他电器。

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Welcome to Four Seasons Hotel Seattle.

欢迎光临西雅图四季酒店。

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Another Seattle hotel looking to capitalize on the book is The Edgewater.

CNN: Hotels offer 'Fifty Shades of Grey' sexy weekend getaways

Bonnie Kate Pourciau, 18, said she is "not a huge Batman fan, really, " but decided to go to the movie after she and her friend Elizabeth Sumrall stopped at a hotel in Aurora en route from Seattle to their homes in Baton Rouge, Louisiana.

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"This package brings together all of the only-in-Seattle experiences in the bestselling 'Shades of Grey novels, '" says the hotel's marketing spiel.

CNN: Hotels offer 'Fifty Shades of Grey' sexy weekend getaways