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I built one of those maybe 13-15 years ago. With D-cell batteries, I think I’ve only had to change them once. It’s also good at picking up when the AC turns on and when I flip a light switch.
I built one of those maybe 13-15 years ago. With D-cell batteries, I think I’ve only had to change them once. It’s also good at picking up when the AC turns on and when I flip a light switch.