5 ms·
Most co2 sensors I've seen on Amazon are in the $100 range. I found some good information though[0], and the smallest form factor (CozIR-LP) retails at $109 [1
by humblebee 7y ago
Most co2 sensors I've seen on Amazon are in the $100 range.
I found some good information though[0], and the smallest form factor (CozIR-LP) retails at $109 [1].
[0] https://www.co2meter.com/blogs/news/6010192-how-does-an-ndir-co2-sensor-work https://www.co2meter.com/blogs/news/6010192-how-does-an-ndir...
[1] https://www.co2meter.com/products/cozir-lp-ambient-air-co2-sensor https://www.co2meter.com/products/cozir-lp-ambient-air-co2-s...
- w-m 7y agoInteresting links, thanks! So it's mostly an IR lamp, an IR sensor with an optical filter and the air to test in between. I don't understand from the article how long the waveguide actually is. Is this just a cylinder that is a few mm long bent around a corner, or is this some hollow tube much longer wound around the center of the sensor many times?
- segfaultbuserr 7y agoThese modules are expensive because they are designed mainly for industrial applications, not for low-cost customer electronics.