• Sensor
Apollo Automation

AIR-1 Air Quality Sensor

$92.99
$92.99
Shipping calculated at checkout.

The Apollo AIR-1 is the most compact, feature-rich, affordable, and expandable air sensor for Home Assistant. Utilizing WiFi and ESPHome, it is locally controlled with no subscription or cloud required.

Powered via USB-C and a standard wall plug, the device uses WIFI to connect to ESPHome on your Home Assistant install.

We proudly offer the software and CAD drawings to the community, encouraging all to modify and improve upon them. For more information, visit our GitHub or wiki. We're eager to see the innovative adaptations you come up with. Join ourĀ Discord community to share your unique remakes, or to engage in discussions about future products.

Reviews

SCD40 CO2 Sensor:
MiCS-4514 Gas Sensor:

The SEN55 particulate sensor is great for telling you about dust, pollen, and other particles in your air. Want to know if you should turn in your HVAC fan to filter your home air? Doing wood working in the garage? This will let you know when you might need to turn on a filter.

The optional CO2 sensor is very eye opening. Many people do not know the air in their office or bedroom reaches CO2 levels that have an affect on you. From poor sleep at night, drowsyness in the office, and brain fog can all be caused by high CO2. This sensor will let you know if your levels are getting too high and you need to turn on the air circulation or open a window.

The RGB leds are great for notifications. Trash night? Turn the LED green. Mail in the mailbox? Turn the LED blue. Air quality approaching bad levels? Turn red.

  • Assembled sensor with case
  • Apollo sticker

We hope to build a community on our Discord and continue delivering products the community wants. Our team will be there to help answer any questions, suggestions, or problems you might have.

Join our Discord.

Please see our Apollo Wiki for more information.

Product Details

The AIR-1Ā measures only 61mm x 61mm x 30mm and has an aesthetic design to blend in.Ā 

So what does the AIR-1 do?

PM1, PM2.5, PM4, PM10, VOC, NOx, Temperature, Humidity (SEN55)

**There is a temperature offset needed due to heat buildup from the ESP32-C3.
We are still evaluating it but it is between 2 and 6 degrees C.

Many air quality measurements from a very reputableĀ manufacturer. The sensor has a 10-year lifespan at continuous use (Most PM sensors only have 3 years) meaning you can have very short update intervals:

  • Monitor 3d printers
  • Turn your air purifier on when air quality becomes unhealthy
  • Detect new paint fumes

CO (Carbon Monoxide), C2H5OH (Ethanol), H2, NO2, NH3 (Ammonia), CH4 (Methane) (MiCS-4514 From DFRobot) - Optional

** Our beta test group has noticed the methane reading will spike when exposed to high amounts of other gasses. We all believe this is manageable for the vast amount of automations still but wanted to let you know. It is much more a exists/doesn't exist type of gas monitoring vs the actual PPM readout, it will read 0ppm in normal air.

(This device does not meet the requirements for gasĀ safety monitoring per the NBIC, NFPA, or IFC)

Monitor the individual gas percentages in your air with this optional add-on.

CO2 (SCD40) - Optional

This optional add-on brings a CO2 sensor to the package, which comes pre-calibrated and ready to use. (This device does not meet the requirements for CO2 safety monitoring per the NBIC, NFPA, or IFC)

  • Get alerts to open a window or automate your HVAC fan to run when CO2 levels are high.

Barometric Pressure (DPS310)

This pressure sensor feeds into the SCD40 (CO2) for more accurate readings

Bluetooth Tracker(ESP32-C3-Mini) - YAML Config Required

Track Bluetooth devices in your house, letting you know which devices are closest to the sensor. You will need to know the MAC of the Bluetooth devices you want to track.

  • Find your phone if you left it in the office or the bedroom.
  • Know who just walked into the room.
  • Track a beacon attached to your dog's collar.

RGB Pixels

Uses color-coded alerts for various home scenarios.

  • Flash red if the air quality is unhealthy.
  • Flash green on trash night.
  • Flash blue when it's treat time for your pup.

Power And Sensor Expansion Connector

A connector that'll allow future sensors and power methods. A few expansion boards are in development currently but no set release date. Let us know what you'd like to see on the expansion slots.

Extras Always available:

  • Access to our discord for support, product announcements, and home automation ideas.Ā Ā Link
  • Access to our code and CAD files for you to remix or browse community remixes.Ā Link
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Customer Reviews

Based on 100 reviews
92%
(92)
5%
(5)
2%
(2)
0%
(0)
1%
(1)
99.0
100.0
S
S.B.
Good Option

I'm going to review each of the three parts separately.

Base sensor: great, reports values inline with other sensors I own in a small form factor.

CO2 sensor: it reads a little high for me and it took two calibrations to get there but it's workable.

Other gases: so I missed the part about the methane portion being unreliable that's stated on the page, but I don't really understand the use case for this sensor when it's not reliable. Apollo is facilitating a return of this sensor so it's all good.

Support: the support on Discord is timely and helped me resolve my issues with the device.

Sam,

Thank you for taking the time to share your feedback, and thank you for your support. Weā€™re sorry to hear about the trouble youā€™ve had.

As you mentioned, the main SEN55 air sensor is solid, especially with its 10 years of continuous use. Regarding the gas sensor, youā€™re right that it has limitations. This is something we are open about on our website. On the AIR-1 product page, we include this note:

'Our beta test group has noticed the methane reading will spike when exposed to high amounts of other gasses. We all believe this is manageable for the vast amount of automations still but wanted to let you know. It is much more a exists/doesnā€™t exist type of gas monitoring vs. the actual PPM readout. It will read 0ppm in normal air. (This device does not meet the requirements for gas safety monitoring per the NBIC, NFPA, or IFC)'

The SCD40 CO2 sensor is a true NDIR sensor and has been accurate in testing. We are still working with you to troubleshoot the issue. If it turns out to be hardware related or you aren't satisfied, we will happily exchange/return it and make it right.

As for support, we did respond to your question about the gas sensor by referencing the same note (above) from our product page. It is a known issue that we are very open and transparent about. We are also actively helping you with the CO2 issue through our Discord and Freshdesk system. In fact, we actually responded just a few minutes ago. We are a small team and do our best to provide direct support. You can talk directly to us, the founders, and all of our support conversations are public so others can follow along and offer suggestions too.

We are here to help if youā€™re willing to give us the chance. We care about the community becasue we are community memebers ourselves, and will always do our best to make things right!

Best,
Justin Bunton
Co-Founder
Apollo Automation

2
28Tauri
Impressive quality, some caveats

I've really enjoyed the AIR-1; mine has the added CO2 and MiCS gas sensors installed. I'm most pleased with the CO2 and VOC portions, the MiCS leaves a bit to be desired. It shows random, extremely high spikes at fairly regular intervals, clearly cross-sensitive to other gases. I had the most problems with methane detection, as it kept showing levels that were just not reasonable, and did not dissipate with ventilation, etc. An internet search will show this to be an issue with the sensor itself, and I knew this going in.

The CO2 levels work great and is what I am primarily using this for, along with particulate. PM 2.5 readings align pretty well with other particulate monitoring devices I use.

Minus the methane detection, it's a great little device!

User picture
N
Nikolay
Great Air Quality Sensor for Home Assistant

The Apollo Automation AIR-1 Air Quality Sensor delivers precise, real-time indoor-air readings and integrates seamlessly with Home Assistant. Installation is straightforward, requiring no custom scripts, and the device begins reporting PM2.5, COā‚‚, and VOC levels within minutes. I highly recommend the AIR-1 for anyone seeking a reliable, professionally engineered air-quality sensor for smart-home applications.

A
Aaron M.
Excellent workshop companion

I set the LED to respond to air quality on all parameters, and if any were in the danger zone it would let me know with a red light. Iā€™ve been surprised as to what affects air quality; even shredding cardboard for a prolonged period of time can be dangerous, and it lets me know to mask up. Thank you Apollo!

C
Corey B.
Great Product

Itā€™s exactly what I wanted

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