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Device Specifications

Airgeek A1/M1 Detailed Tech Specs

Sensors (A1, M1)

Parameter Datasheet Range Units Resolution[1] Accuracy Origin
Temperature Sensirion SHT45-AD1B −40...+125 °C[2] 0.01 ±0.1 °C[3] Switzerland
Relative humidity 0...100 % 0.01 ±1[4]
Atmospheric pressure Bosch Sensortec BMP581 300...1 250 hPa[5] 1/64 ±30 hPa[6] Germany
CO2 concentration Senseair Sunrise 400...5000 ppm[7] 1 ±(30 + 3 % m.v.[8]) Sweden
PM1 concentration Bosch Sensortec BMV080 0...1 000 μg·m-3 1 ±max{10, 10 % m.v.} Germany
PM2.5 concentration 0...1 000 μg·m-3 1
PM10 concentration 0...1 000 μg·m-3 1
NO2 concentration SPEC Sensors 110-541 TBD ppb[9] TBD TBD USA
CO concentration[10] SPEC Sensors 110-115 0...100 ppm[7] 0.1 ±1 % USA

  1. The smallest change in measured value the sensor can register. Our apps don't typically display the full resolution of the measured value. E.g., the Airgeek app displays temperature rounded to 0.1 °C and relative humidity rounded to 0.5 %, because that's more than enough for practical use.

  2. Temperature can be displayed as °C or °F.

  3. This is the typical accuracy when temperature is 5...60 °C. Please refer to the datasheet for accuracy across the full measurement range.

  4. This is the typical accuracy when humidity is 20...70 %. Please refer to the datasheet for accuracy across the full measurement range.

  5. Atmospheric pressure can be displayed as hPa, inHg or mbar.

  6. This is the typical accuracy when pressure is 300...1 000 hPa and temperature is −5...65 °C. Please refer to the datasheet for accuracy across the full measurement range.

  7. Parts per million, i.e. 1 part CO/CO2 per 1 000 000 parts air.

  8. Measured value, i.e. the sensor's reading.

  9. Parts per billion, or 1 part nitrogen dioxide (NO2) per 1 000 000 000 parts.

  10. Like carbon dioxide (CO2, the greenhouse gas), carbon monoxide (CO) is a colorless, odorless gas. Unlike carbon dioxide (CO2), carbon monoxide (CO) is acutely toxic in low concentrations. This device is not a CO alarm and must not be relied upon for carbon monoxide detection. Please do invest in a dedicated CO alarm to protect your life or property. Please refer to this FAQ for details.

Operating conditions (A1, M1)

  • Indoor use only
  • Operating temperature range: −20...60 °C
  • Operating humidity range: 5...75 % RH, non-condensing

Connectivity (A1, M1)

  • NFC
  • Matter over Thread
  • Zigbee
  • Bluetooth Low Energy (BLE), currently only used for Matter device commissioning.

Batteries & battery life (A1)

One or two batteries can be inserted. However, always use the same type of battery in both battery bays. Never mix rechargeable and non-rechargeable batteries. The battery provided with your order is non-rechargeable!

1 year battery life is achieved by using a single Energizer Ultimate Lithium battery (non-rechargeable primary lithium-metal, 5.25 Wh typical) or two Panasonic Eneloop Pro (low self discharge Ni-MH, 3.1 Wh typical each).

Any rechargeable or non-rechargeable AA battery with a voltage of 3 V or less can be used to power your device. Please note that certain AA-sized batteries are 3.6 V (e.g. industrial Li–SOCl2 batteries). Those are not supported at the moment and will damage your device.

Enclosure (A1)

  • Dimensions: 103×103×26 mm (4×4×1 in.)
  • Weight: 260 ± 50 g (excluding batteries)
  • Front: Corning® Gorilla® Glass
  • Frame: FSC Certified oak or walnut hardwood on PLA frame
  • Back: PLA backplate with magnetic attachments and a magnetic wall mount

Compatibility (A1, M1)

The device is known to be compatible with the following platforms:

  • Airgeek app (Android, iOS)—see below
  • Apple Home
  • Google Home
  • HomeAssistant

In principle, any Matter and Zigbee platform should be interoperable. If you run into any compatibility issues, please let us know.

Airgeek app (A1, M1)

App

  • Available for free in the App Store (iOS) and Google Play store (Android)
  • No account or subscription is required to use the app, no paid features
  • Communication via NFC—no smart home integration required
  • To the extent possible, we aim for Android/iOS feature parity

Features

  • Factory firmware restore
  • Firmware update
  • Device configuration
  • Data read-out, visualization (charts) and analysis
  • Built-in air improvement guide
  • Optional data sharing with family members (free of charge)
  • Open source

Source code

All source code we wrote for this project is available on GitHub. Feel free to open an issue or a merge request there.