Reference tools
Emergency numbers, Morse code table, ground-air signals, and Beaufort scale.
Emergency Numbers
Searchable database of emergency numbers by country. Shows police, fire, ambulance, and general emergency numbers.
Morse Code Table
Complete reference table for the Morse code alphabet and numbers. Includes the SOS signal.
Ground-Air Signals
International ground-to-air visual signals for communicating with aircraft during emergencies. Each signal should be at least 3 meters tall.
Beaufort Scale
Reference for the Beaufort wind force scale. Shows wind speeds, descriptions, and observable indicators for each level from Calm (0) to Hurricane (12).
Related articles
Navigation tools
Compass, altimeter, GPS coordinates, sun & moon, and speedometer.
Weather tools
Weather forecast, lightning distance, wind chill, heat index, and tides.
Light & signal tools
Flashlight, SOS light, morse translator, strobe, night light, and color screen.
Measurement tools
Bubble level, clinometer, ruler, metal detector, sound meter, and unit converter.
Timers & sound tools
Water boil timer, emergency whistle, frequency generator, CPR metronome, and stopwatch.