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Sensor Definitions

Once added to Home Assistant you can configure different settings for your sensor. Below is what each setting does.

Controls

  • RGB Light
    • 3 RGB Neopixels. Click on the light bulb to change the color. Click on the toggle to turn on or off
  • Calibrate SCD40
    • Refer to the CO2 calibration guide. Place your sensor outside and click this button to calibrate the CO2 levels

Sensors

  • Ammonia
    • Measurement from MiCS-4514 gas sensor
  • Carbon Monoxide
    • Measurement from MiCS-4514 gas sensor
  • CO2
    • True CO2 reading from the SCD40. This will be Unknown if you do not have the CO2 module. This can be calibrated following this guide but does come precalibrated: Here
  • DPS310 Pressure
    • Atmospheric pressure, used to better calibrate the SCD40 CO2 module
  • DPS310 Temperature
    • A worse measurement of temperature. This is more susceptible to internal heat buildup. Please use the SEN55 temperature
  • ESP Temperature
    • This is the temperature of the internal ESP chip. Think of it like your measured CPU temp on your PC
  • Ethanol
    • Measurement from MiCS-4514 gas sensor
  • Hydrogen
    • Measurement from MiCS-4514 gas sensor
  • Methane
    • Measurement from MiCS-4514 gas sensor
  • Nitrogen Dioxide
    • Measurement from MiCS-4514 gas sensor
  • PM < 10 µM
    • Measurement of particulates smaller than 10 µM
  • PM < 1 µM
    • Measurement of particulates smaller than 1 µM
  • PM < 2.5 µM
    • Measurement of particulates smaller than 2.5 µM
  • PM < 4 µM
    • Measurement of particulates smaller than 4 µM
  • SEN55 Humidity
    • Humidity measurement from SEN55, will be most accurate
  • SEN55 NOX
    • Measurement of nitrogen oxides from the SEN55
  • SEN55 Temperature
    • Measurement of temperature from the SEN55, will be most accurate
  • SEN55 VOC
    • VOC index from the SEN55
  • VOC Quality
    • This uses the VOC index and a scale to output an easier to use variable
    • 0-79: Improved
    • 80-119: Normal
    • 120-199: Abnormal
    • 200-299: Very abnormal
    • 300+: Extremely abnormal
  • PM 0.3 To 1 µm
    • Disabled by default but can be enabled in HA. Shows particulate count that are from 0.3 to 1.0 µm
  • PM 1 To 2.5 µm
    • Disabled by default but can be enabled in HA. Shows particulate count that are from 1 to 2.5 µm
  • PM 2.5 To 4 µm
    • Disabled by default but can be enabled in HA. Shows particulate count that are from 2.5 to 4.0 µm
  • PM 4 To 10 µm
    • Disabled by default but can be enabled in HA. Shows particulate count that are from 4.0 to 10.0 µm

Configuration

  • ESP Reboot
    • Performs a restart of the sensor
  • SEN55 Temperature Offset
    • Allows you to calibrate the SEN55 temperature. Please refer to our calibration guide
  • SEN55 Humidity Offset
  • Startup Light Blink
    • Controls if the led blinks after power on when trying to connect to HA

AIR-1 Sensor Data.jpg

Detailed Sensor Definitions

Controls:

• Calibrate SCD40 to 420ppm: A control option to calibrate the SCD40 CO₂ sensor to a specific concentration, typically outdoor levels.

• Clean SEN55: This control allows you to clean the SEN55 sensor, likely clearing any temporary issues or recalibrating.

• RGB Light: Control to toggle the RGB LED light on or off, which can be used for visual notifications.

Sensors:

• Ammonia (NH₃): Measures the concentration of ammonia in the air, which can come from agricultural emissions, cleaning products, or industrial processes.

• Carbon Monoxide (CO): Detects the concentration of carbon monoxide, a dangerous, odorless gas typically produced by combustion.

• CO₂ (Carbon Dioxide): Tracks CO₂ levels in parts per million (ppm), which can indicate poor ventilation and impact overall air quality and cognitive performance.

• DPS310 Pressure: Measures air pressure in psi (pounds per square inch), providing insights into atmospheric changes and enhancing the accuracy of CO₂ readings.

• Ethanol (C₂H₅OH): Detects ethanol vapors, commonly found in cleaning agents, sanitizers, or alcohol-based products.

• Hydrogen (H₂): Monitors the concentration of hydrogen gas, which can indicate leaks or industrial processes.

• Methane (CH₄): Detects methane concentrations, which can indicate natural gas leaks or emissions from agricultural activities.

• Nitrogen Dioxide (NO₂): Measures the levels of nitrogen dioxide, a harmful gas often produced by vehicle emissions and industrial processes.

• PM <10µm Weight Concentration: Tracks particulate matter smaller than 10 micrometers (PM10), which includes dust, pollen, and mold.

• PM <1µm Weight Concentration: Monitors the concentration of ultra-fine particles smaller than 1 micrometer, often present in smoke or exhaust.

• PM <2.5µm Weight Concentration: Measures particles smaller than 2.5 micrometers (PM2.5), which are generated by combustion and industrial activities.

• PM <4µm Weight Concentration: Detects particulate matter smaller than 4 micrometers.

• PM 0.3 To 1 µm: Monitors particles in the range of 0.3 to 1 micrometer.

• PM 1 To 2.5 µm: Tracks particles between 1 and 2.5 micrometers.

• PM 2.5 To 4 µm: Measures particulate matter between 2.5 and 4 micrometers.

• PM 4 To 10 µm: Detects particles between 4 and 10 micrometers.

• SEN55 Humidity: Measures relative humidity in the air, which impacts comfort and the overall environment.

• SEN55 NOX: Monitors nitrogen oxides (NOX), harmful gases produced by burning fossil fuels and industrial processes.

• SEN55 Temperature: Tracks ambient air temperature to help assess comfort levels and environmental conditions.

• SEN55 VOC: Detects volatile organic compounds (VOCs), which are emitted from paints, cleaning products, and industrial chemicals.

• VOC Quality: Provides an assessment of air quality based on the concentration of VOCs, ranging from normal to abnormal.

• SEN55 Temperature: Measures ambient air temperature (73.9°F shown), used to assess the thermal conditions in the environment.

• SEN55 VOC: Detects volatile organic compounds (VOCs), which are often found in cleaning products, paints, and other household chemicals. The value is 191 ppm.

• VOC Quality: Assesses overall air quality based on VOC levels. In this case, it is marked as “Abnormal.”

• SEN55 Humidity: Measures the relative humidity of the environment (30.9% shown), which affects comfort and air quality.

• SEN55 NOX: Detects nitrogen oxides, harmful gases often produced by combustion and vehicle emissions. The reading is 1.

Configuration:

• ESP Reboot: A button to restart the ESP32 microcontroller running the AIR-1 sensor, helpful for troubleshooting or refreshing connections.

• Firmware Update: Shows the status of firmware updates (currently unavailable).

• SEN55 Humidity Offset: Allows you to adjust the humidity readings for calibration purposes.

• SEN55 Temperature Offset: Lets you calibrate the temperature sensor by adjusting the offset in degrees Celsius.

• Startup Light Blink: An option to enable or disable a startup blink from the RGB LED when the sensor powers on.

Diagnostic:

• ESP Temperature: Displays the internal temperature of the ESP32 microcontroller (112.6°F shown), which is often higher than ambient due to the processor’s activity.

• Online: Shows the connection status of the device (Connected).

• RSSI: Displays the signal strength of the Wi-Fi connection (-61 dBm shown), which can impact the sensor’s performance if too weak.

• Uptime: Shows how long the device has been online without rebooting (258:25:54 shown, meaning it has been up for over 258 hours).