Hacker News new | ask | show | jobs
by Mutlut 1111 days ago
Unfortunat edoesn't support co2.

Having co2 made it much much more aware to me to keep window open or open them and this effect is very long lasting for me, i'm doing this now for years and it stuck.

I can highly recommend buying a $60 or so co2 device.

2 comments

Any particular devices or brands you could recommend?
We maintain popular open source air quality monitor projects. You can source the components yourself or get a kit from us [1].

The indoor kits include a high quality NDIR CO2 Sensor from senseair.

[1] https://www.airgradient.com/kits/

I use an Awair Element and it's been fine. The component parts on all these are pretty much the same though.
Oof, the Awair Element is 230 on Walmart and 275 on Amazon. That’s a fair bit more than the 60 that GP quoted.
It's $157 now directly from their site -- $209 with a 25% off promo code.

Still way more than $60 but more reasonable for what you get. It's basically a $60 sensor that costs more because of WiFi and phone integration.

https://www.getawair.com/products/element

Yup me too. It's fairly attractive looking and integrates with your phone to view history and get alerts.
not the GP but I'm a fan of the Netatmo Indoor Air Quality Monitor. Price is fair imo (100usd), the app works well plus the data can be accessed via the web, and it includes humidity, temperature, and noise monitoring in addition to CO2 monitoring.
i only bought TFA Dostmann AirControl Mini CO2 Meter TFA 31.5006 Ambient Air Monitoring by accident, it does what it does and is super unflashy so i got another one a year later.
Do these $60 CO2 devices also measure air pollution like IKEA’s?
Usually yes. PM2.5 sensors are usually the common denominator across all consumer air sensors.
Most of the $60 ones aren’t really measuring CO2. The usual giveaway is if the sensor also measures VOC or TVOC most are estimating the CO2 based on that. Which has only a vague correlation sometimes and not remotely close to useful.

You need a device that specifically quotes having an “NDIR” sensor and most are $100+

The one i mentioned btw. only hsa that NDIR sensor and is at 60 bucks: "Hochwertiger NDIR Dual Beam Sensor" <> "high quality NDIR Dual beam sensor"

And it doesn't meassure anything else. So a good point that its not the same thing and if you want both, you probably need to spend 100+