Helikon-Tex Signal Mirror

This little rescue mirror lets you aim reflected sunlight over long distances. Over short distances it is easy as long as you can see the light on a tree or wall, but at a great distance an ordinary mirror cannot achieve such precision. The Signal Mirror has a special hole that works like a collimator, so you can aim the reflected light at more distant targets.

In an emergency, you can call for help with an SOS signal by aiming at a ship or plane. Visibility depends on sunlight, weather and terrain, but in good conditions the reflection can be seen from several kilometres away. The back has instructions and an emergency button compass.