Work · alternatives · 2026

24 alternatives to theO: Smart Indoor Environment Sensor
Get intelligent insights into your air quality
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. theO: Smart Indoor Environment Sensor launched in 2018; newer entries below may have overtaken it.
- 1

Monitor your world with Enviro and Enviro + Air Quality for Raspberry Pi!
2019 · shop.pimoroni.com · its alternatives →
- 2AH
2014 · visionect-epaper.com · its alternatives →
- 3

Smart sensor that monitors your environment and air quality
2018 · its alternatives →
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Wynd▲180A smart portable air purifier for your personal space
2017 · hellowynd.com · its alternatives →
- 6AL
Hi HN! I’ve been working on an air quality measuring device called Air Lab for the past three years. It measures CO2, temperature, relative humidity, air pollutants (VOC, NOx), and atmospheric pressure. You can log and analyze the data directly on the device — no smartphone or laptop needed. To better show what the device can do and how it feels like, I spent the past week developing a web-based simulator using Emscripten. It runs the stock firmware with most features available except for networking. Check it out and let me know what you think! The firmware will be open-source and available…
2025 · networkedartifacts.com · its alternatives →
- 7
CubeSensors▲67Track temperature, humidity, noise, etc across your home.
2014 · cubesensors.com · its alternatives →
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- 9
WiCub▲73An IoT temperature & humidity sensor for your home
2016 · kickstarter.com · its alternatives →
- 10

The smart air quality tracker to help you find clean air
2017 · plumelabs.com · its alternatives →
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A slimmer, sharper, sexier thermostat
2015 · store.google.com · its alternatives →
- 14
Ecoisme 2.0▲109A smart energy monitor for your home appliances
2017 · ecoisme.com · its alternatives →
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A comprehensive indoor air quality monitoring system built with ESP32-C3 Super Mini and multiple environmental sensors. This project helps you monitor CO2, temperature, humidity, volatile organic compounds (VOCs), nitrogen oxides (NOx), and particulate matter (PM1.0, PM2.5, PM10) to maintain healthy air quality in your home or office.
2025 · github.com · its alternatives →
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In the cold season we tend to keep the windows closed. The air gets "stale": humidity often rises above 60 %, which can harm our wellbeing and promote mould. At the same time the CO₂ level in the air increases, which impacts our ability to concentrate. So I built a room air monitor that stays unobtrusive as long as everything is in the green zone, but becomes deliberately noticeable once thresholds are exceeded. For my personal love of statistics I also visualise the measurements in a clear dashboard.
Nov 2025 · nicolin-dora.ch · its alternatives →
- 19

CO₂ & Temperature monitor. Contribute to larsp/co2monitor development by creating an account on GitHub.
2018 · github.com · its alternatives →
- 20

The smartest air quality platform for a healthy home
2019 · kickstarter.com · its alternatives →
- 21
SensorKit▲91The smart home widgets that Apple didn't give us.
2022 · apps.apple.com · its alternatives →
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Halo Air▲8The world's first environmental sensor for your phone
2025 · kickstarter.com · its alternatives →
- 24

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →