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Where please? What model.




I own this one as well, it's supposed to be one of the more accurate models available for the price


Where did you get the information about this model being more accurate than other models in the same price range?


This was the article that gave me that impression iirc - https://medium.com/@dhh/air-quality-matters-but-dont-trust-f...


I'm not the OP, but I use this one with similar results: https://www.amazon.com/gp/aw/d/B01FYWU2IS

One of these days I'm going to have to rig up something to start the house fan when the CO2 goes above 800 ppm and I think you'd need a different sensor with a realtime output port for something like that.


Direct feedback is cool, but a simple schedule is really easy & reliable. Even occupancy detection isn't all that critical- nobody wants to come home to a stuffy house, and most people's schedules are very predictable.

These days IoT is so widespread that something like a $25 WeMo smart outlet is hard to beat. Hard wired is "best" but a million times more hassle and more expensive.


If you want a reference on setting this up to meet industry standards on demand controlled ventilation practices see ASHRAE 62.1 and 62.2 standards




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