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Delhi: 16-year-old develops sensor doorbell to combat Corona
Sarthak Jain, a 16-year-old student residing in Delhi has developed a sensor doorbell. The specialty of this doorbell is that one can ring this bell from a distance of 20 cm. Sarthak even gave a demo of it. According to Sarthak, the ultrasonic sensor of this bell can detect a device from a distance of 30 to 50 cm. Watch this report to know more.
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