Environmental Protection

Environmental Protection

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A small indicator light near a switch can signal when lights that are out of sight a€” in the basement or outdoors, for example a€” have been left on. If a main ... remain on throughout the night, use a timer or motion detector. ... Both mechanical and solid-state timers are available, and some offer the option of a manual override.

Title:Environmental Protection
Author:Sarma V. Pisupati
Publisher:Kendall/Hunt Publishing Company - 2007


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