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Old 02-25-2017, 01:09 PM   #1
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Default Discussion: Doorbell transformer acts as simple water-leak detector

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Jeff Tregre EDN Shortly after installation, the simple water-leak-detector circuit in this Design Idea saved the day and hundreds of dollars. The average life expectancy of a hot-water heater is about 10 years.
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Old 02-25-2017, 01:09 PM   #2
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For $25 you can abruptly make to the scheme. Yes the transformer and, in principle, any and not just from the door lock. Nothing useful in this article is not saw.
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