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. 2021 Sep 21;21(18):6303. doi: 10.3390/s21186303

Table 9.

Power Consumption and Cost of sensors in experimental framework.

Sensor Supply Voltage (V) Supply Current (mA) Module Cost (€)
DS18B20 +3.0 to +5.5 <1 mA@3.3V ≈2.00€
DHT22 +3.3 to +5.5 <1 mA@3.3V ≈3.00€
CCS811 +1.8 to +3.6 <1 mA@3.3V ≈5.00€
BMP280 +1.7 to +3.6 <1 mA@3.3V ≈1.00€
BH1750 +2.4 to +3.6 <1 mA@3.3V ≈1.00€
MQ-7 +2.5 to +5.0 80 mA@3.3V ≈1.50€