The deluxe signal mirror includes three features; a signal mirror, whistle, and compass. It allows you to aim the signal flash with pinpoint accuracy and even on overcast days, you can effectively use this signal mirror. It's portable and compact design is ideal for hiking, camping, etc.
How to use:
1. Hold the mirror with one hand and then aim the mirror to let the sunlight beam reflect to your other palm.
2. Keep the relative position and move the central target hole of the signal mirror to the eye, then you can watch clearly a bright spot. This spot is the sight bead.
3. Move the signal mirror slowly to make the spot overlap the location you need to aim for.
4. If you can't see any rescue personnel, you can move the sight bead back and forth along the horizon. In this way, the heliogram can be seen dozens of kilometers away.