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Title: Complete malfunction
Review: Bought this at a storefront instead of on Amazon-- big mistake; wouldn't have wasted my money had I seen the reviews. According to this sensor, my walls are composed of nonstop, solidly-packed studs that are wrapped entirely in live wires and will surely cause instant death by electricution if I attempt to drive a nail in. If I remove the battery and put it back several times, the same walls have studs placed 10" apart (but the entire wall is still live). Sometimes, the studs move around while the sensor is active. It's amazing.
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