The MQ-2 gas sensor has high sensitivity to LPG, Propane and Hydrogen, also could be used to detect Methane, it is low cost and suitable for several different applications. Characteristics *Good sensitivity to Combustible gas in wide range * High …
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sensor
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The SHT21 is a low cost humidity and temperature sensor. Its an I2C device so again is very simple to connect to any arduino The digital SHT2x humidity sensor series is used in high volumes in a wide variety of …