Whistle Emergency Signal Generator – Online Three Blasts
Listen to and practice the international distress signal: three short blasts. Lifesaving knowledge.
UD5 Toolkit
Listen to and practice the international distress signal: three short blasts. Lifesaving knowledge.
Play standard emergency whistle patterns (SOS, three blasts) using Web Audio. Learn signals for outdoor safety. Offline capable after load.
Visual and audio beat at 100‑120 compressions per minute. 30 compressions timer. For training and emergencies.
Interactive checklist to build an emergency go-bag. Covers water, food, first aid, tools, documents. Track progress locally. Essential for disaster preparedness.
Calculate how many gallons of water to store based on household size and days. Preparedness aid.