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Updated: Jun 14, 2025

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Sensing Classroom Temperature, Relative Humidity, Illuminance, CO2, and Noise: An Integral Solution Based on an IoT

Wilmar Hernandez1, Norberto Cañas2

  • 1Carrera de Ingenieria Electronica y Automatizacion, Facultad de Ingenieria y Ciencias Aplicadas, Universidad de las Americas, Quito 170513, Ecuador.

Sensors (Basel, Switzerland)
|August 29, 2024
PubMed

Keywords:
remote sensorssensor applications in the environmentsensor networks

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Any physical property that depends consistently and reproducibly on temperature can be used as the basis of a thermometer. For example, volume increases with temperature for most substances. This property is the basis for the common alcohol thermometer and the original mercury thermometers. Other properties used to measure temperature include electrical resistance, color, and the emission of infrared radiation.
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