air_quality_monitor

sensors:

pm

• pm2.5 PMS3003 https://www.aliexpress.com/item/Laser-PM2-5-DUST-SENSOR-PMS3003-High-precision-laser-dust-concentration-sensor-digital-dust-particles-G3/32371229255.html $14

• pm2.5 HPMA115S0-XXX https://www.aliexpress.com/item/PM2-5-sensor-HONEYWELL-HPMA115S0-XXX-laser-pm2-5-air-quality-detection-sensor-module-Super-dust/32829242280.html

• pm1 pm2.5 pm10 PMS5003 https://www.aliexpress.com/item/-/32877757510.html $23

• pm2.5 https://www.aliexpress.com/item/50pcs-lot-Free-shipping-SMD-ceramic-gas-discharge-tube-BF231N-230V-5KA-4-2X5-0X5-0mm/32429590757.html $26

CO

• CO TGS5042 https://www.aliexpress.com/item/-/32847450612.html $17

CO2

• CO2 S8 0053 https://www.aliexpress.com/item/-/32854740322.html $33
• CO2/VOC equiv CCS811 CJMCU8118 https://www.aliexpress.com/item/CCS811-HDC1080-Carbon-Dioxide-CO2-Temperature-And-Humidity-Sensor-VOCs-Air-quality-Monitor-Sensor-Module-Winder/32871695408.html $13

O2

• O2 KE25 https://www.aliexpress.com/item/Free-shipping-Oxygen-sensor-KE-25-NEW/32652404724.html $55
• O2 alphasense https://www.aliexpress.com/item/FREE-SHIPPING-1PCS-Oxygen-Sensor-O2-A2-O2A2-02-A2-02A2-Gas-Sensor-Detector-ALPHASENSE-Oxygen/32843621321.html $28
• O2 https://www.aliexpress.com/item/100-new-CITY-oxygen-sensor-4OX-V-40XV-4OX-2-4OXV-2-4OX-2-4OXV-CiTiceL/32849535755.html $28

NO2

• NO2 https://www.aliexpress.com/item/S-4-2NO2-This-2-electrode-NO2-sensor-is-an-ideal-cost-effective-solution-for-detecting/32878449659.html $60

SO2

• SO2 https://www.aliexpress.com/item/Free-shipping-ME4-SO2-sulfur-dioxide-sensor-gas-detection-sensor-probe-Technology/32809033220.html $80 range 0-20ppm resolution 0.1ppm

• SO2 https://www.aliexpress.com/item/Free-shipping-US-SPEC-Electrochemical-SO2-Sulfur-Dioxide-Sensor-20ppm-Package-3SP-SO2-20/32811636916.html

• SO2 https://www.aliexpress.com/item/Free-shipping-British-CITY-4S-SO2-sulfur-dioxide-gas-sensor-original-authentic-stock/32816825195.html $130

• H2S https://www.aliexpress.com/item/100-Good-Quality-MQ-136-the-H2S-Sensor-Module-MQ136-Hydrogen-Sulfur-Detection-Sensor/32810454265.html $20

H2S

• H2S https://www.aliexpress.com/item/100-Good-Quality-MQ-136-the-H2S-Sensor-Module-MQ136-Hydrogen-Sulfur-Detection-Sensor/32810454265.html

mixed - these are often nonspecific

• oxynitirde CJMCU- MICS-6814 Air Quality CO VOC NH3 https://www.aliexpress.com/item/CJMCU-MICS-6814-Air-Quality-CO-VOC-NH3-Nitrogen-Oxygen-Gas-Sensor/32764306250.html $25

more detectors - see https://www.citytech.com/index.html

air quality egg sensors

• Carbon Monoxide and Nitrogen Dioxide is a SGX Sensortech MICS-4514 metal oxide sensor
• Ozone sensor is a SGX Sensortech Limited MICS-2614 metal oxide sensor
• Particulate matter sensor is a Shinyei PPD42 optical particle counter
• MaxDetect RHT03 for temperature and humidity

platform: https://platform.hackair.eu/