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LD-250M Lightning Detector

LD-250M Lightning Detector



LD-250M Lightning Detector

Puts a live lightning map on your laptop or desktop computer. Within milli-seconds of a lightning strike the detector beeps and your computer displays the strike location. Warns of both close and severe thunderstorms. If a storm is detected closer than a preset distance or the strike rate exceeds a preset limit, the LD-250 sounds its internal alarm and activates the computers alarm tone or WAV file notification.


Basic installation instructions for the lightning sensor are printed on the top of the unit to aid in deployment.

  • Rugged die-cast aluminum enclosure
  • Rugged MIL spec connectors
  • Rugged aluminum front panel pushbuttons
  • Receiver and antenna are waterproof to IP67 standards.
  • LD-250 Lightning Detector has two built-in alarms: a Close Storm Alarm and a SevereStorm Alarm.
  • The Close Storm Alarm will activate if a thunderstorm is detected closer than a preset distance. The Severe Storm Alarm activates if the number of lightning strikes per minute exceeds a preset limit.
  • The LD-250 will sound an alarm tone when either alarm activates. Front panel pushbuttons allow both the Strike tone and Alarm tones to be disabled.
  • The computer can also be configured to sound an alarm tone and/or pop up a notification window when an alarm activates.
  • Alarm status is indicated by the color of the Close Storm distance circle and Severe Storm status indicator in the top left corner of the map window.
  • Strike rates, both Close Strikes/Minute and Total Strikes/Minute are shown for the previous hour on the Strike RateTrend Graph letting you easily see if storms are increasing in severity or dying off.
  • Noise indicator shows if local interference is affecting the ability to detect far away lightning.
  • A custom vector map allows you to zoom into any region. Zoom out to the maximum range of 750 miles (1500 miles across) or zoom in as close as 15 miles .


  • LD-250 Receiver Voltage
11.8-16VDC, 0.8 Amp
  • AC Adapter (North America)
100-240VAC, 50-60Hz. Approvals: UL, ULC
  • RS232 Port
9600 baud, 8 bits, 1 stop bit, no parity
  • USB Adapter Cable
 Windows 7,Vista, XP, 2000, NT, 98, 95
  • Antenna
Standard Boltek Lightning Detector Antenna (StormTracker compatible)
  • Antenna Cable
Standard CAT5 Network Cable. 50 feet included. Custom lengths available on request.
  • GPS/Compass Port
NMEA standard 4800 baud, 8 data bits, 1 stop bit, no parity
  • GPS Sentence
  • Compass Sentence
  • RS232 Data Format
ASCII, NMEA style data sentences, GPS/Compass data passed through
  • LD-250 Dimensions
4.9”x 7.0”x 1.1”(123 x 178 x 29 mm)
  • Antenna Dimensions
1.5”x 2.0”3.7”(38 x 51 x 94 mm)
  • Weight
0.8 lbs (375 gm
  • Shipping Weight
5.6 lbs (2.6kg)
  • Shipping Dimensions
9.0”x 11.5”x 6.5”(229 x 292 x 165 mm)
  • Software
  • Operating Systems
Windows 7 (32/64 bit),Vista (32/64 bit), 2000, XP, 98, 95, NTCOM7 &Vista (64 bit) requires optional USB-1 USB Adapter Cable
  • Ports Supported
  • Display Resolution
15 to 750 miles (15 mile increments; 24 km)
  • Severe Storm Alarm Setpoint
0-999 Strikes / Minute
  • Detection Range:
0-300 miles (0 – 480 km) 0 – 360 degrees
  • Accuracy
Accuracy increases as more lightning strikes the same area.
  • Accessories
Includes LD-250M-RX Receiver, ANT-1M-15 Antenna, EXT-1M-50 50 foot (30m) of Extension Cable, Universal 100-240VAC PowerSupply, USB Cable, RS232 Cable, NexStorm Lite Software, and Manual. Protects your LD-250M antenna and simplifies installation.