StrikeAlert Lightning Detector

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This Strike Alert Personal Lightning Detector provides early warning of lightning strikes as far away as 40 miles. Personal and portable lightning detector. - Strike Alert M747 An audible alarm sounds and a corresponding LED illuminates accordingly as lightning strikes. - Distances within 6 miles, 6-12 miles, 12-24 miles, and 24-40 miles. Indicates if lightning strikes are approaching or moving away. Low power consumption. - Up to 100 hours with two AAA batteries. Easy to use. - Flip a switch to check lightning strike distance. - Track storm direction. View battery life. Show more