![](http://www.alamy.com/thumbs/6/26D73FE3-8B4F-496D-9F38-3BE2137EAAD2/KTT8A1.jpg)
An professional technican electrican checks the isolation of the light switch using a multimeter. Isolated on white top view studio shot
Size: 5000px × 3333px
Photo credit: © Aleksandr Volkov / Alamy / Afripics
License: Royalty Free
Model Released: Yes
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