Life & fun · alternatives · 2026
24 alternatives to I made a CO2 sensing Christmas ball
CO2 measuring christmas ball that changes color based on CO2 level - jacobqvist/christmas-ball
This is a CO2 sensing Christmas ornament that monitors carbon dioxide levels in the air. It's designed for anyone interested in tracking indoor air quality during the holiday season or year-round. The project is… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. I made a CO2 sensing Christmas ball launched in 2021; newer entries below may have overtaken it.
- 1
A simple webserver / CO2 Monitor. Contribute to Maddimax/MadCO2 development by creating an account on GitHub.
2019 · github.com · its alternatives →
- 2
CO₂ & Temperature monitor. Contribute to larsp/co2monitor development by creating an account on GitHub.
2018 · github.com · its alternatives →
- 3
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 →
- 4CD
2018 · carbondoomsday.com · its alternatives →
- 5AL
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 →
- 6
The gift of carbon dioxide removal for your loved ones
2020 · climeworks.com · its alternatives →
- 7
Smart sensor that monitors your environment and air quality
2018 · its alternatives →
- 8
Get intelligent insights into your air quality
2018 · indiegogo.com · its alternatives →
- 9
Real-time quantification of greenhouse gas removals
Apr 2026 · hyphen.earth · its alternatives →
- 10
See your CO2 in burgers, basketballs, pufferfish and more
2019 · its alternatives →
- 11
A hobby project of mine that was surprisingly easy to put together! I love waking up and seeing the freshly generated image.
2024 · github.com · its alternatives →
- 12PA
2016 · anfractuosity.com · its alternatives →
- 13AH
2015 · maximise.dk · its alternatives →
- 14
- 15WM
2023 · johnzanussi.com · its alternatives →
- 16
Find out the how much CO2 your website emits
2019 · websitecarbon.com · its alternatives →
- 17
- 18WC
Weekend Project: Web-controlled Christmas Lights with Node.js, Arduino, and Raspberry Pi
2013 · gnewt.at · its alternatives →
- 19
SQUAKE API▲87Sustainability API for CO2 calculations & contributions
2022 · squake.earth · its alternatives →
- 20
Hi HN - My name is Andrew, and I'm a high school student. This is a write-up on StratoSpore, a payload I designed and launched to the stratosphere. The goal was to test if we could estimate physical altitude based on algae fluorescence (using a lightweight ML model trained on the sensor data). The blog post covers the full engineering mess/process, including: - The Hardware: Designing PCBs for the AS7263 spectral sensor and Pi Zero 2 W. -The biological altimeter: How I tried to correlate biological stress (fluorescence) with altitude. - The Communications: A custom lossy compression…
Nov 2025 · radi8.dev · its alternatives →
- 21
Help Santa▲98An experimental mini game with HTML, CSS, SVG and JS
2017 · silocreativo.com · its alternatives →
- 22
CubeSensors▲67Track temperature, humidity, noise, etc across your home.
2014 · cubesensors.com · its alternatives →
- 23AH
2014 · visionect-epaper.com · its alternatives →
- 24
Display your website carbon emissions and raise awareness.
2020 · its alternatives →
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- A climate-positive gift alternatives
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 →