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35 items

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  1. ASAIR AO-03 Oxygen Sensor - STM32 Analog Voltage Output Module

    ASAIR AO-03 Oxygen Sensor - STM32 Analog Voltage Output Module

    $34.75 As low as $30.82
  2. Base PCB Board MQ Gas Sensors

    Base PCB Board MQ Gas Sensors

    $0.50 As low as $0.44
  3. MAX30100 Blood-Oxygen Heart-Rate Sensor Module

    MAX30100 Blood-Oxygen Heart-Rate Sensor Module

    $1.25 As low as $1.09
  4. MQ-8 Hydrogen Gas Sensor Detection Module

    MQ-8 Hydrogen Gas Sensor Detection Module

    $0.95 As low as $0.85
  5. MQ-7 Carbon Monoxide Detection Sensor Module

    MQ-7 Carbon Monoxide Detection Sensor Module

    4.6  (3) 
    $1.25 As low as $1.09
  6. MQ-7 Carbon Monoxide Gas Sensor Module

    MQ-7 Carbon Monoxide Gas Sensor Module

    $0.95 As low as $0.85
  7. CCS811 Carbon Dioxide CO2 Air Quality Gas Sensor Module

    CCS811 Carbon Dioxide CO2 Air Quality Gas Sensor Module

    $10.25 As low as $9.17
  8. MQ-8 Hydrogen Gas Sensor Module

    MQ-8 Hydrogen Gas Sensor Module

    $0.75 As low as $0.66
  9. MQ-3 Alcohol Gas Sensor Module

    MQ-3 Alcohol Gas Sensor Module

    $0.95 As low as $0.85
  10. MQ-2 Smoke Gas LPG Butane Methane Sensor Module

    MQ-2 Smoke Gas LPG Butane Methane Sensor Module

    $0.95 As low as $0.85
  11. MQ-135 Gas Sensor and Air Quality Control Module

    MQ-135 Gas Sensor and Air Quality Control Module

    $0.95 As low as $0.85
  12. MQ-2 Gas & Smoke Sensor Module

    MQ-2 Gas & Smoke Sensor Module

    $0.75 As low as $0.66
  13. ENS160 and AHT21 CO2, Temperature And Humidity Sensor

    ENS160 and AHT21 CO2, Temperature And Humidity Sensor

    $5.75
  14. MICS-5524 Air Quality Gas Sensor Module

    MICS-5524 Air Quality Gas Sensor Module

    $5.95 As low as $5.26
  15. SGP30 Air Quality VOC and eCO2 Sensor Module

    SGP30 Air Quality VOC and eCO2 Sensor Module

    $6.95 As low as $6.16
  16. MC105 Methane Gas Sensor Module

    MC105 Methane Gas Sensor Module

    $2.25 As low as $1.98
  17. MQ-135 Air Quality and Hazardous Gas Sensor Module

    MQ-135 Air Quality and Hazardous Gas Sensor Module

    4.0  (1) 
    $1.25 As low as $1.08
  18. MQ-9 Carbon Monoxide & Flammable Gas Sensor Module

    MQ-9 Carbon Monoxide & Flammable Gas Sensor Module

    4.3  (3) 
    $1.25 As low as $1.08
  19. MQ-4 Natural Gas Sensor Module

    MQ-4 Natural Gas Sensor Module

    $0.75 As low as $0.66
  20. MQ-6 Gas Sensor Module

    MQ-6 Gas Sensor Module

    $0.75 As low as $0.66
  21. SCD40/SCD41 CO2 Gas Sensor Module

    SCD40/SCD41 CO2 Gas Sensor Module

    $15.75
  22. MH-Z14A NDIR Infrared Carbon Dioxide Sensor Module

    MH-Z14A NDIR Infrared Carbon Dioxide Sensor Module

    $30.50
  23. ZE08-CH2O Formaldehyde Concentration Measurement Module

    ZE08-CH2O Formaldehyde Concentration Measurement Module

    $8.25 As low as $7.39
  24. MQ-5 Combustible Gas Propane Butane Sensor Module

    MQ-5 Combustible Gas Propane Butane Sensor Module

    $0.95 As low as $0.85
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