![](http://www.alamy.com/thumbs/6/9DDD3EE4-B997-4BBD-A4AE-0AB05FBBAFAD/WWRJD2.jpg)
Man holding calipers and information about energy efficiency
Size: 5616px × 3744px
Photo credit: © YAY Media / Alamy / Afripics
License: Royalty Free
Model Released: No
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