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Mics-6814 Air Quality Co No2 Nh3 Nitrogen Carbon Gas Sensor Module For Arduino - Sensors - AliExpress
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MICS-6814 integrated on a board with ESP-WROOM-32d, V_Rs reads ~ 2.98 V (of 3.3) - Project Guidance - Arduino Forum
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MICS一6814 Air Quality CO NO2 NH3 Nitrogen Oxygen Gas Sensor Module Compatible Arduino: Amazon.com: Industrial & Scientific
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