Gearward’s 24HSD (24 Hour Signalling Device) is just what it sounds like – a device designed to be useful for signalling around the clock, not just when the sun is high in the sky. It consists of 2 main components that allow it to work day and night: a dog-tag like signal mirror and a glow in the dark tag.
The signal mirror can be used to reflect the sun’s rays at whoever you are attempting to signal. Signal mirrors are nothing new. They work and they deserve a place in your kit.
The glow in the dark tag, however, is something new. It is made from Moon Glow, a glow in the dark acrylic, that has to be seen to be believed. It glows very brightly and for a fairly long duration. To use it, you simply charge it up with a flashlight and then spin it in a circle at the end of a cord. This creates a large circle that is very visible, especially in heavy darkness to dark adjusted eyes.
The 24HSD’s dog tag form makes it extremely compact and easy to carry. You can carry on your neck, on your keys, in your pack, or even in an Altoids tin style survival kit. It is compact enough that you’ll always have it at hand.
Check out the Gearward 24HSD.