Czero
Czero is a wearable device made to reduce the spread of infections. The ring vibrates when the hand of the wearer comes near the face, giving a reminder not to touch it. An earring or pendant communicates wirelessly with the ring to sense this distance. Inside the ring are a transmitter, a receiver, a vibrator, an optical blood flow sensor, a temperature sensor, a microcontroller and a battery. Health data is sent to a linked application, which also gives reminders to wash the hands. The accessories are small and discreet.
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