The Grove - Alcohol Sensor implements all the necessary circuitry for MQ303A like power conditioning and heater power supply. This sensor outputs a voltage inversely proportional to the alcohol concentration in air.
Based on Bosch BME280, we made this low-cost and high-precision environmental sensor -- the Grove - BME280 Environmental Sensor (Temperature Humidity Barometer), support I2C and SPI.
Grove BME680 Temperature, Humidity, Pressure and Gas Sensor is a 4-in-1 environmental sensor with strong sensing capability for Temperature, Humidity, Pressure, and Gas (VoC) even in a small package!
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Keyestudio
Fischertechnik
