IIT Kharagpur Invents Low-Cost Dirt Detector That Alerts Authorities When a Place Needs CleaningSanitationBy Lekshmi Priya S01 Aug 2017 11:42 ISTBeneficial towards maintaining the sanitation of public facilities that are cleaned only in fixed intervals, the device can help curb the use of water, harmful cleaning agents and even labour by raising alerts only when need arises.Read More
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