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StrikeAlert
Personal Lightning Detector
only $69 each or 2 for $135.00
Please
note: This is
the latest model. You may see some sites incorrectly advertising this as
"StrikeAlert II", however this is the only model
available since 2005.
The world's first convenient, dependable and easy-to-use personal
lightning detector. Detects
lightning in ranges as close as 6 miles or as far as 40 miles away.
StrikeAlert
is a small (about the size of a pager) and affordable lightning detector
that provides an early warning of approaching lightning strikes from as
far away as 40 miles and lets you know if the storm is coming your way.
Its designed for personal and portable use.
An audible alarm sounds when there's a strike and a corresponding LED
light illuminates accordingly at lightning distances of 20-40 miles, 12-24
miles, 6-12 miles and within 6 miles.
The detector is housed in a small pager-like casing that can be clipped on
a belt loop and runs on two AAA battery up to 100 hours. It's perfect for
outdoor sporting events and activities.
Who
uses it?
-
Electric,
Cable TV, and Telephone Utility crews
-
Coaches
in charge of sporting events
-
Golf
courses and golfers
-
Hikers,
campers, boaters
-
Forest
Fire crews and smokejumpers
-
School
administrators
Convenient
Size & Weight
Small and impact-resistant, StrikeAlert clips to your belt, golf bag or
backpack.
Take it wherever you go!
Audible Warning
Loud audible warning sounds before (and while) lightning is within
striking distance.
Visible Warning
LED's show range of strikes, plus can indicate direction.
Low Power Consumption
Up to 100 hours of reliable operation with a single AA battery.
Easy-to-Use
With the flip of a switch, you can see the lightning strike distance,
track the storm direction and view battery life.
Features
Power Switch
The power switch has three positions: On, Off and On with tone. The switch
may also be depressed to indicate the direction of storm movement
Battery
Check
When first turned on, StrikeAlert performs a
battery test.
The LEDs will indicate the battery level, with each LED indicating about
20 hours of operation. The LEDs will light up, beginning with the red LED
and leading up to the current battery level. The current battery level
will be the final LED to light and will remain lit for two seconds.
StrikeAlert will then begin its normal operation.
Normal
Operation
During normal operation, the green LED will be
on continuously to indicate StrikeAlert is monitoring for lightning
strikes. If the green LED is blinking, StrikeAlert is in the presence of
interference.
How
it works- Detecting Lightning Strikes
When a lightning strike is detected, StrikeAlert will light the
appropriate LED indicating the distance of the strike This LED will remain
lit for two minutes- unless another strike occurs during that time. If a
more recent strike is further away, the LED indicating this distance will
light for two seconds, and then return to complete the two minutes from
the nearest strike. If a more recent strike is nearer, it will replace the
previous LED reading. This LED indicator will be held for two minutes.
This allows the user to see all the lightning activity within a 40 mile
range, giving clearer visibility to the nearest strike in the last two
minutes. If the power switch is in the "On with Tone" position,
StrikeAlert will also generate tone(s) indicating the distance of the
strike along with lighting the appropriate LED. This allows you to
determine the storm's activity without having to monitor the LEDs.
Storm
Direction
Strike Alert uses a trend of strike distances over the last five minutes
to determine if a storm is approaching or departing. By depressing the
power switch, the LED will change to one of three patterns:
-
If the LED
cycles from green to red, the storm is approaching.
-
If the LED
cycles from red to green, the storm is departing.
-
If the LED
cycles from the center LED to the outside LEDs, the storm is
stationary or there's not enough data to  determine
the direction of the storm. Direction cannot be determined if there
has not been enough strikes to identify a trend or StrikeAlert has not
been running long enough. Approximately five minutes is needed in the
presence of lightning strikes to determine direction.
Interference
StrikeAlert is designed to be used outdoors. While
StrikeAlert will work indoors, its ability to detect lightning strikes can
be affected by common sources of electromagnetic emissions, such as:
-
CRTs -
(televisions or computer monitors)
-
Gasoline
Motors and engines
-
High-powered
electric equipment such as industrial machinery
Moving
StrikeAlert a short distance away from these devices (usually a few feet)
should allow the detector to return to normal operation. If StrikeAlert is
receiving interference due to such electromagnetic emissions, the green
LED will blink or may give a false lightning indication. The static
generated by some garments may also produce a false indication, but this
is usually only a problem in winter or extremely dry climates. Again,
moving the detector just a few feet away from the source of the
interference should allow StrikeAlert to resume normal operations. This
will be indicated by the green LED remaining constantly lit.
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