ThunderBolt TB-U1
The ThunderBolt uses advanced computer technology that puts storm detection in the palm of your hand. The ThunderBolt is an accurate, reliable storm detection device that alerts you to oncoming thunderstorms up to 75 miles away, and provides you with a detailed readout of the storm's range and Estimated Time of Arrival (ETA).

HERE'S WHAT YOU GET in the Standard Utility package: - custom desk stand - custom fitted, hard-sided, field carrying case - soft carry pouch - owner's manual - 220-volt AC adapter - custom wall mounted.

• Storm and Lightning Detection Range - 75 Miles (120 km in metric version)
• Automatically Displays:
  • Ranging
  • Storm approach speed
  • E.T.A. at User Location
  • Time to Clear
  • Severe Storm/Squall Line Detection
• Detection Frequency: 10 kHz
• Computer analysis and detection of squall lines and severe storm cells
• Automatic background noise analysis and filtering
• Warning modes:
  • Text messages via 2 x 16 LCD
  • Red LED Warning light
  • Audible tone
• Connector for external alarm
• User selectable warning modes and frequencies
• Power supply: One 9V battery (50 Hours+ of operation)
• Size: 6.4" x 3.4" x 1.5"; Weight: 14 oz.