Whistle (to signal for help)

A whistle is a small, simple, yet incredibly powerful signaling device that should be in every emergency kit and on every keychain. Its primary purpose is to help rescuers locate you if you become trapped or lost. A whistle's sound is much louder and carries farther than a human voice, and it requires significantly less energy to use. If you are trapped under debris after an earthquake or lost in the wilderness after evacuating, shouting for help can quickly lead to exhaustion and a sore throat. A whistle allows you to signal for help for a much longer period.

When choosing a whistle, opt for a pea-less design, which is typically made of plastic. Unlike traditional whistles with a cork or plastic 'pea' inside, pea-less whistles cannot be jammed by water, dirt, or ice, making them far more reliable in all conditions. They also produce an extremely loud, high-pitched sound that is easily recognizable as a signal for help. The universal distress signal is three blasts in a row. Attach a whistle to the zipper of every family member's jacket or backpack, and teach everyone, including children, how and when to use it.

This simple tool is a critical piece of personal safety equipment. In a large-scale disaster, search and rescue teams are spread thin and may be working in noisy environments. The sharp, piercing sound of a whistle can cut through the noise and alert them to your location. It's a fundamental tool for making yourself findable. The inclusion of a whistle in your kit reinforces the preparedness principle of being able to signal for help, a crucial step in increasing your chances of being rescued in a worst-case scenario. It is an inexpensive item that could save your life.