Working on the antenna on your roof, fishing on a large lake in a small boat or hanging out on top of your local water tower are all places that you probably don’t want to get caught unexpectedly in a thunderstorm. This thunderstorm detector can pick up lightening from up to 75 miles away by detecting “the low-frequency radio signals, or sferics, emitted by lightning as they travel through the earths ionosphere.”, according to the catalog page at Hammacher Schlemmer.

Not only does it tell you if it detects lightning, but it will tell you how far away a storm front is, whether or not its heading your way and how soon it will get there. The device is small - only 6.5 inches tall and runs up to 90 hours on a 9 volt battery. When storms are detected and differentiated from other similar non-storm sources the device will indicate it through a flashing red light, audible alarm and an LCD screen with 50 different messages to communicate the situation.

Whether its to keep you out of a dangerous situation or if storms just freak you out and you would like to start freaking out sooner, with a spare $430 bucks you can take advantage of this advanced notice.

Source: Crave