A close up portrait of a fire alarm sticking on a ceiling for safety. The device is round and hands on a white ceiling. The smoke detector alerts people of a fire by making a sound.

A close up portrait of a fire alarm sticking on a ceiling for safety. The device is round and hands on a white ceiling. The smoke detector alerts people of a fire by making a sound. - 152194530

Close-up of a white thermostat on a white wall

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