A must for every coach and league administrator! The Strike Alert HD is the first personal lightning detector with a graphical display that shows the early warning of lightning strikes up to 40 miles away as well as a 1-hour distance of the incoming storm. The screen displays the lightning strike distance while an audible alarm sounds and/or vibrates. A corresponding LED light illuminates accordingly as lightning strikes at distances of under 6 miles, 6-12 miles, 12-24 miles and 24-40 miles. This Strike Alert lightning detector has a low power consumption up to 80 hours and tracks lightning in all directions.