TORNADOLERT - operation, installation, and maintenance in cars,
TORNADOLERT reliably detects tornados within a 10 mile range. Powered by vehicular 12 volts, it may be located anywhere in a vehicle with no effect on performance. However, vehicle windows should be closed when driving more than 90 mph. Otherwise, TORNADOLERT will alarm.
When TORNADOLERT alarms, follow National Weather Service guidelines:
"Leave vehicle quickly and seek sturdy shelter. If sturdy shelter is not available nearby, drive to safer shelter or, depending on circumstances, leave vehicle and lie flat in a nearby ditch or depression until a tornado is no longer a threat."