BCB 4 Inch Mayday Signalling Mirror Heliograph
The BCB 4 Inch Mayday Signalling Mirror Heliographis a lightweight, robust signalling mirror, approved for marine and military use.
It is highly reflective giving it a range of over 10 miles.
Designed for one-handed operation.
- Accurate and effective
- Quick and easy to use
- Instructions printed on reverse side
- Useful as personal travel mirror
- Lanyard hole
Size 10x10cm (4x4").