The morning sun beats down on Antonio Reina as he tends to a public garden in Barcelona, but he works reassured that a simple wristband protects him in the summer heat.
The device contains a sensor that detects body temperature. If Reina gets dangerously hot at the risk of making a potentially deadly heatstroke likelier, a red light and a sound raise the alarm.
βItβs an extra layer of security. As itβs supposed to go off before you have symptoms, it lets you leave wherever your place of work is, drink water, and get under the shade,β Reina, 54, told AFP.
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