The Boltek LD-250 Lightning Detector puts a live lightning map on your laptop or desktop computer without recurring charges. Within milliseconds of a lightning strike the detector beeps and your computer displays the strike location. The LD-250's direction-finding antenna measures lightning strike direction while the LD-250's receiver estimates distance from received signal strength. Advanced signal processing in software improves distance accuracy, reducing the effects of strike-to-strike variations in strike energy.
The LD-250 connects to your computer's USB or RS232 (COM) port making it suitable for use with both laptop and desktop computers. The LD-250 will even detect lightning when your computer is turned off. When the LD-250 starts beeping or the Strike light starts flashing you can turn on your computer to see where the storms are located.
 | The LD-250 can warn 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. Both the Close Storm and Severe Storm alarm statuses are indicated on the LD-250's front panel. 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.
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 | Strike rates, both Close Strikes / Minute and Total Strikes / Minute are shown for the previous hour on the Strike Rate Trend Graph letting you easily see if storms are increasing in severity or dying off.
Three display ranges, 100, 200 and 300 miles (160, 320 and 480 km) allow you to zoom into the region of interest. Zoom out to the maximum range of 300 miles (600 miles across) or zoom in to 100 miles to see only the nearby storms. |
 | Turn on the LD-250's heading indicator when running mobile. The blue triangle in the center of the screen rotates as your vehicle turns to show the LD-250 is using the GPS or compass to correct for changes in your vehicle's direction.
Connect an optional Boltek LDGPS-1 GPS Receiver or LDC-1 Fluxgate Compass to your LD-250 and track lightning from your car, truck or boat.
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The LD-250 uses a small active antenna to receive the radio signals from lightning strikes. These signals are the crackling you hear on an AM radio during a thunderstorm. The direction-finding antenna antenna is able to tell which direction the signal is coming from. The software measures the strength of the received signals to estimate distance. Special signal processing in software reduces the effects of strike-to-strike energy variations providing more accurate distance information.
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Pictured to the left is the optional ENC-1 Outdoor Antenna Enclosure to mount your external antenna outdoors. You can also get the ENC-2 Mobile Magnetic-Mount Antenna Enclosure to mount your LD-250 antenna on your vehicle.
The antenna may be mounted indoors (in a wood framed house) or outdoors. For mobile installations it is mounted outside on the roof of the vehicle.
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 | The optional RLO-10 Relay Output Module provides three solid-state relay outputs for interfacing external devices to the LD-250 alarms and strike indicators. External devices such as PLC inputs or auxilliary indicators can be activated when the LD-250 alarm activates.
The Close Storm Alarm output contacts will close for one minute each time a strike is detected closer than 25 miles. Constant close lightning activity will hold the contact closed. The contact will open again when no close strikes have been detected for one minute.
The Severe Storm Alarm output contacts will close if the strike rate rises above 300 strikes/minute. Once the strike rate falls below 300 strikes/minute the contacts will open.
The Strike output contacts will close for 200ms every time a strike is detected.
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Boltek LD-250
Includes LD-250 Receiver, Antenna, 50 feet of Antenna Cable, 120VAC Power Supply, 12VDC Automobile Power Cord, USB Cable, RS232 Cable, GPS Cable, Windows Software, and Manual.
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$680.00
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Custom Background Map
The LD-250 can be used without a background map but we recommend having one. You can make your own BMP format map or you can purchase a custom made vector format map. Please specify your GPS coordinates. Custom vector background maps are compatible with NexStorm and NexStorm Lite.
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$68.00
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Optional NexStorm Display Software
StormTracker comes with the standard Boltek display software, but you can increase accuracy, the appeal of the display and add a ton more options by using this 3rd party software package. More info.
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$130.00
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Optional Lightning2000 Display Software
StormTracker comes with the standard Boltek display software, but you can increase accuracy, the appeal of the display and add a ton more options by using this 3rd party software package. Price includes a custom background map. More info.
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$175.00
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Optional Additional Antenna
Buy an extra antenna if you will be moving the LD-250 between two locations.
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$115.00
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Optional Mobile Magnetic-Mount Antenna Enclosure [ENC-2]
Mount your LD-250 antenna on your vehicle with this magnetic mount enclosure. Protects your antenna from the elements while mobile.
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$135.00
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Optional Outdoor Antenna Enclosure [ENC-1]
White protective housing for your external antenna when mounting outdoors. Protects your StormTracker or LD-250 antenna from the elements.
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$115.00
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Extra Antenna Cable
LD-250 Lightning Detector includes 50 feet of antenna cable. If you need a longer cable indicate how many additional feet you require. For example: a 60 foot cable = 10 extra feet. 200 feet maximum cable length (150 additional feet max).
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$0.60 per additional foot.
Set the quantity when adding this to your cart to the number of additional feet you require. You get 50 feet, so if you need 60 feet, you set the quantity on the next page to 10, which adds 10 feet.
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Relay Interface Option for LD-250 [RLO-10]
Connect external devices to the LD-250's Strike, Close Alarm and Severe Alarms.
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$125.00
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Optional GPS for LD-250 [LDGPS-1]
Magnetic mount GPS with 20 feet of cable for heading correction required when using the LD-250 in a vehicle. In a mobile installation (car, truck, boat, etc) you need a compass or GPS to tell the LD-250 which direction your antenna is pointed.
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$245.00
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Optional Fluxgate Compass for LD-250 [LDCMP-1]
Fluxgate compass for heading corrrection required when using the LD-250 on a boat or vehicle. In a boat or other specialized application where the direction of motion is not always forward a compass is required.
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$345.00
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| Voicemail: | 651.400.0031 | | Fax: | 603.297.2365 |
| Convective Development, Inc.
P.O. Box 511
Cambridge, MN 55008
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© 2012 Convective Development, Inc.
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