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Staying in touch during an emergency or while coordinating a security detail can mean the difference between a quick response and a dangerous delay. Cell phones rely on networks that …

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Two way radios let people talk to each other without using cell towers or the internet. This makes them useful in places where phone signal is weak or does not …

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A thermal camera turns your phone into a tool that can see heat instead of just light. It picks up infrared energy and shows you a color map of hot …

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Clean water matters for drinking, swimming, and keeping fish tanks or aquariums healthy. Turbidity is the measure of how cloudy or murky a liquid is. It comes from tiny particles …

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A thermal camera attachment turns your iPhone into a tool that can see heat instead of light. These small devices plug into your phone and show you a color map …

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