Pay in 4 interest-free payments of $11.24 Learn more
Ships within 48 hours · Estimated delivery Aug 14 - Aug 19
Know when to ventilate your room
This project is fully open-source and the PCB design files and software are available here:
It uses an ultra-capacitor to store the solar energy
Maybe you need to really reduce your power consumption and running the sensor all the time will consume too much power
You only need to solder the battery holder and screw terminals
CO₂ Monitor Sale Know when to ventilate yourKnow when to ventilate your room! Keep the air fresh and circulating with this carbon dioxide monitor. There has been quite a lot of discussion about using carbon dioxide as an indicator of stale, non moving, air which could cause the build up of covid 19. A really interesting discussion from Make magazine is here: https: makezine. com 2021 04 22 plan c02 live . The concept is: if there are lots of people breathing out CO and the room is not well
US$ 771.42
US$ 338.44
US$ 35.15
US$ 19.90
US$ 29.99
US$ 29.99
US$ 29.99
US$ 57.61
US$ 43.00
US$ 30.00
US$ 29.99
US$ 432.70
US$ 29.99
US$ 29.99
US$ 9000.00
