Altruist Dual — Indoor & Outdoor Air Quality Meters

€360.00

In stock

A bundle of two air quality meters: Outdoor Urban and Indoor Insight for monitoring your living environment.

  • PM2.5, PM10, CO2, noise, temperature, humidity, and atmospheric pressure monitoring
  • High-precision NDIR and environmental sensors
  • Privacy-focused: no cloud, no app, no subscription, no account
  • Instant access via the built-in web interface; MQTT/API ready
  • 4.2" E-Ink (E-Paper) display
  • Home Assistant integration

The missing layer of your smart home — real environmental insight for the spaces where you live, sleep, and work.

1. Pick an emotion for Urban:
2. Pick a color for Urban:
3. Pick a color for Insight:
4. Add a Weather Protection Hood for Urban: +€10.00
Printed with ASA plastic
ASA - it is a sort of plastic that offers improved UV, temperature, and impact resistance. It's ideal for outdoor hood due to its high stability.
€360.00
Worldwide Shipping
We ship our devices worldwide wherever reliable postal service is available.
2-year warranty
If anything goes wrong within two years after purchase, we will send a replacement device at no extra cost.
Free returns
Send it back - no questions asked. If you're not totally thrilled with your new Altruist, please tell us so we can try and put things right.
4.3
Excellent
9 reviews
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Indoor CO2 monitor

Sleep better, recover well, and keep an eye on your child's room climate with CO₂ monitoring. The E-ink display stays gentle on the eyes and won't disturb your sleep.

Outdoor air quality meter

Measuring fine particles, sand and dust as PM10, as well as noise, and featuring open-source firmware ready for Home Assistant, it opens up a variety of smart home automation scenarios.

Years of experience shaped the design of two devices built for an optimal analysis of the air in your habitat.

Altruist Dual environmental sensors

Explore our open-source environmental map — or build your own

Explore real sensor data from communities around the world. See AQI, historical data, color-coded charts, outdoor noise, and detailed environmental analytics — all on an open-source map.

Have your own sensor already? Add it to the map — no subscription, cloud service, or account required. Or simply use the map to explore your environment. Want a map for your own community? Fork our open-source project and build your own.

Enjoy sensors map right now

Your data, your hardware, your choice

Access your data through the sensor's local interface, Home Assistant, our online map, or build your own open-source solution. With open protocols and open-source software, your sensor isn't locked to a specific platform, cloud, or vendor.

Altruist.local

Local interface on your device within local wi-fi, no servers at all.

Home assistant

Smart home integration with one of the most popular app - local server setup required.

Sensors.social

Web interface with expanded data analytics, based on blockchain, no one-corporate-cloud vendor lock.

Rich air quality charts at your service

AQI Index sensors.social map pannel Realtime pm10 and pm2.5 chart on sensors.social map

Track PM2.5, PM10, noise, temperature, humidity, and atmospheric pressure in real time or explore historical data by day, week, or month on sensors.social.

For private use, you can choose whether to share your Altruist data publicly in the settings.

Flexible manufacturing — more designs, less carbon footprint

We design, test, and build our own smart solutions in a flexible small-scale production. Our goal is simple: bring more freedom and choice to everyday smart devices.

View models on Makerworld

Looking for an Air Quality Sensor? Compare What Matters

Altruist bundle Device 1 Device 2 Device 3 Device 4
Indoor & Outdoor
Outdoor Noise
Indoor CO2
User owns data
Replaceable enclosure

Choosing an air quality sensor isn't just about counting sensors and checking boxes. It's about how you use the data, where it goes, and how much freedom you have after you buy the device.

Altruist gives you more than environmental measurements: monitor indoor and outdoor air quality, track noise, connect to Home Assistant, explore your data on an open-source map, and keep ownership of your data.

With 3D-printed, replaceable enclosures and repair kit for individual components, you can customize, repair, and upgrade your sensor instead of replacing the whole device. No vendor lock-in — just a sensor you can adapt to your needs.

What's inside Altruist Dual

Altruist Urban air quality sensor's details
Altruist Insight co2 sensor's details

What’s in a box

Altruist Dual Box

Altruist Urban: 1 Outdoor Air Monitor, 1 USB-A to USB-C cable, 1 Wall mount (PLA), 2 Screws, 2 Double-sided tapes, 1 User manual

Altruist Insight: 1 Indoor Air Quality Monitor, 1 USB-A to USB-C cable, 1 SD card, 1 Mini screwdriver, 1 User manual

Weather Protection Hood for Urban: 1 Hood (ASA), 1 Wall mount (ASA), 2 Screws, 2 Double-sided tapes, 1 User manual

Colors and packaging may differ from the image shown.

Specifications

Altruist Urban

Altruist Urban — ESP32-C6–based outdoor air-quality monitor with SDS011 particle sensor, ICS-43434 noise sensor, BME280 temperature, humidity and pressure sensors.
Model ID:

ES-ALTRUIST-URB-1

Processor & Memory:

ESP32-C6-WROOM-1-N8, high-performance 32-bit single-core RISC-V CPU, up to 160 MHz

320 KB ROM, 512 KB HP SRAM, 16 KB LP SRAM

8 MB of Flash memory

Sensors:

Nova SDS011, laser-based particulate-matter sensor (PM2.5, PM10)

Bosch BME280 (temperature, relative humidity, atmospheric pressure)

TDK InvenSense ICS-43434, digital MEMS microphone for ambient-noise monitoring

Connectivity:

Wi-Fi 2.4 GHz, fully compatible with IEEE 802.11 b/g/n protocol

Radio module included in ESP32-C6-WROOM-1-N8

FCC ID: 2AC7Z-ESPC6WROOM1

Interface:

Web interface via local IP

Data output to a display of the peered Altruist Insight

LED indication of device activity

USB-C port for access to firmware and logs

Power Supply:

Operating voltage: 5 V

Maximum current: 0.6 A

Powered via USB-C connector

Integrations:

Home Assistant

Сustom API (via web interface)

InfluxDB (via web interface)

Device Housing Material:

3D-printed case from PLA plastic

Installation:

Standing

Wall mount

Dimensions & Weight:

125 x 49 x 164 mm, 214 g

Operation Temperature and Humidity:

–25°C … +50°C

10 … 90% RH

Altruist Insight

Altruist Insight — ESP32-C6–based indoor air-quality monitor with SCD41 carbon dioxide sensor, BME680 temperature / humidity / pressure sensors, 4.2" e-paper display, SD-card logging.
Model ID:

ES-ALTRUIST-INST-1

Processor & Memory:

ESP32-C6-WROOM-1-N8, high-performance 32-bit single-core RISC-V CPU, up to 160 MHz

320 KB ROM, 512 KB HP SRAM, 16 KB LP SRAM

8 MB of Flash memory

MicroSD (support up to 4GB for local data)

Sensors:

Sensirion SCD41, photoacoustic NDIR sensor (CO2)

Bosch BME680 (temperature, relative humidity, atmospheric pressure)

Connectivity:

Wi-Fi 2.4 GHz, fully compatible with IEEE 802.11 b/g/n protocol

Radio module included in ESP32-C6-WROOM-1-N8

FCC ID: 2AC7Z-ESPC6WROOM1

Interface:

4.2’’ E-Paper display

LED indicators (28 LEDs)

3 buttons

Web interface via local IP

USB-C port for access to firmware and logs

Power Supply:

Operating voltage: 5 V

Maximum current: 0.6 A

Powered via USB-C connector

Integrations:

Home Assistant

Сustom API (via web interface)

InfluxDB (via web interface)

Device Housing Material:

3D-printed case from PLA plastic

Installation:

Standing

Dimensions & Weight:

95 x 11 x 81 mm, 75 g

Operation Temperature and Humidity:

0°C … +40°C

10 … 90% RH