Testimonial:
“We’ve had very little bad weather here which is quite unusual. We’ve only had 2 thunderstorms since July. The few times when there were storms out there, the unit has worked great!”
US Coast Guard, Connecticut  
Lightning Safety Tip:
kids lightning safety page
warranty
ThunderBolt® X1
The Fastest, Most Accurate Handheld
Storm & Lightning Detector Ever is Available in 2 Great Packages!
X1 3 units image The X1 Ranger™ package and the
X1 Xtreme package
The ThunderBolt® X1 is a high-end, turbo charged storm & lightning detector. Its upgraded electronics, high performance 1% tolerance components, and hand tuned amplifiers, make ThunderBolt® X1 deliver faster performance and higher precision in the most critical applications.

To see who uses ThunderBolt® CLICK HERE »
To Download a TBI Product Brochure Click Here »
    X1 Features:
  • Upgraded electronics
  • Highest grade durable plastic
  • Fully gasketed (water resistant)
  • 125 mile storm detection range
  • Text message library containing over 50 messages for different storm situations Calculates approach speed and ETA
  • Available in miles or kilometers
  • Connector for Storm Vector wireless warning system
To compare ThunderBolt® models CLICK HERE »
To Shop ThunderBolt® U1 CLICK HERE »
To Shop ThunderBolt® Accessories CLICK HERE »
ranger package image
X1 Ranger Package,
MSRP $865.95  
SALE PRICE $781.95
Mile/KM Conversion Chart free upon request. Mile/KM Conversion Switch* add $50 per unit

X1 Ranger Package
Includes:
ThunderBolt® Storm & Lightning Detector X1 Ranger™
Coyote Tan (TB-X1MCT).

    PLUS:
  • Multi-purpose deluxe MOLLE accessory deployment bag
    (size: 6" H x 12"W x 5.5"D)
  • Black MOLLE Field Carry Pouch (6.5" by 4.5" and is 2" wide (expands to 4" wide)
  • 110-volt AC power adapter
  • Rechargeable Extended Service Lithium Ion Battery Pack
  • Instruction Manual
For Accessory Details CLICK HERE »
For a Product Comparison Chart CLICK HERE »
Download a SPEC Sheet or Instruction Manual CLICK HERE »
xtreme package image
X1 Xtreme Package,
MSRP $1194.95  
SALE PRICE $1074.95
Mile/KM Conversion Chart free upon request. Mile/KM Conversion Switch* add $50 per unit

X1 Xtreme Package
Includes:
ThunderBolt® Storm & Lightning Detector X1
Neon Green (TB-X1XTMNG) or Black (TB-X1XTMBK).

    PLUS:
  • Deluxe, black, custom-fitted, waterproof, lockable Pelican™ carrying case to protect your investment
  • Black MOLLE Field Carry Pouch (6.5" by 4.5" and is 2" wide (expands to 4" wide)
  • Desk Stand
  • aquapac® waterproof case for your ThunderBolt®
  • 110-volt AC power adapter
  • Rechargeable Extended Service Lithium Ion Battery Pack
  • 12-volt DC power adapter
  • 3-9V Duracell® PROCELL®batteries
  • High-brightness NEMO™ waterproof LED flashlight
  • Instruction Manual
For Accessory Details CLICK HERE »
For a Product Comparison Chart CLICK HERE »
Download a SPEC Sheet or Instruction Manual CLICK HERE »



conversion chartconversion switchAvailable in either imperial units (miles) with a free MILES/KM conversion chart upon request
or with a MILES/KM Manual Conversion Switch*.
*Manual Conversion Switch: Modified versions of the current ThunderBolt® Storm & Lightning Detector which include a manual calibration selection switch on the back of the unit above the battery compartment (see image). This switch allows the user to select either miles or KM as the calibration in the unit (Note: the calibration will change the numbers being displayed but not remove the miles designation).