Thunderbolt Lightning Detector with 120km Storm Detection Range!Highest-grade durable plasticFully gasketed (Water resistant)Storm Detection Range: up to 120km Text message library containing over 50 messages for different storm situationsCalculates ETA and time to clearBacklit LCD easy-to-read text screenCalculates storm information in miles AND kilometresVisual and audible storm warningsRechargeable on any current and plug configuration in the world