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1. SCD41 CO2 Sensor Module I2C NDIR Carbon Dioxide Temperature Humidity for Arduino

   Using advanced NDIR (Non-Dispersive Infrared) technology, it provides accurate CO2 readings along with temperature and humidity data via I2C interface. Model: SCD41. I2C communication (SDA / SCL). Office and classroom CO2 monitoring.

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2. MH-Z19B Infrared CO2 Sensor Module Carbon Dioxide Gas Sensor for CO2 Monitor

   The sensor is a high-performance sensor that combines mature infrared absorption gas detection technology with precise optical path design and sophisticated circuit design. Water vapor interference, not poisoning.

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3. 0-2V Voltage Output Analog Signal Output Dual Signal Output For Arduino

   Dual Signal Output: Features both analog and FOR TTL level outputs for versatile connectivity options. Stable Performance: Maintains accuracy with minimal FOR IMPACT from temperature and humidity changes.

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4. MQ-137 NH3 NOx Alcohol Benzene Smoke CO2 Gas Sensor Detector Module For Arduino

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5. Sound Detection Sensor Module Smart Vehicle Arduino Raspberry Pi

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