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Trip Wire Trip 12, The Trip-12 is 12 ft. in length with 10 microprocessor-controlled EMF sensors spaced 14 inches apart. *Trip-36 is 36 ft. long with
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Paralight+ EMF Detector - Ghost Hunting Equipment by Infraready
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3 Ways to Make a Tripwire - wikiHow
Paranormal EMF Tripwire Trip-36 - Ghost Hunting Equipment by
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