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“This hiking data logger is used to record a hike’s location, start and end time, temperature, altitude and barometric pressures. It will also audibly report altitude milestones during the hike. Even if you have no interest in hiking you …
“Ever lost padlock keys or forgotten the code to your incredibly strong padlock and can’t open your locker? Imagine a padlock which can be opened with a tap on an object which everyone now carries around and rarely forgets …