Nitrogen Oxide (NO or NO2) Sensor Module

Other Hardware Sensors
1

Hi there,

I'd like to measure the nitrogen (mono-)oxide (NO) or nitrogen dioxide (NO2) levels in the air.

Does anybody have any recommendations for a sensor?

Ideally, and I'm very well aware of the fact that the world isn't ideal, I'd like

  1. I don't want to solder, so I'd like to have a module and I'd like to have UART interface or something
  2. no calibration necessary or as simple as possible
  3. cost less than $50

Does anybody have any experiences with such sensors?

I'd appreciate any help.

2

What concentration levels at what accuracy of each gas do you want to detect?

3

jremington:
What concentration levels at what accuracy of each gas do you want to detect?

Good question, of course. How could I forget to check?

I'd like to measure air quality of my living room. I double-checked, and I found that
NO
Normal: 0.005–0,1 ppb
Dirty: 0.05–300 ppb

NO2
Normal: 0.01– 0.3 ppb
Dirty: 0.2–200 ppb

I guess I'd need a sensor that has a 10 ppb or 0.01 ppm minimum.
Does that sound reasonable?

It seems like the mics-2714 can do that. But I'd like to have a shield. No SMD soldering, please.
Or if possible, I'd like to use it with a raspberry pi directly.

Edit:
I just checked, limits seem to be at around 10-50 ppb, so having a minimum of 10 ppb is a must.

4

The MiCS-2714 senses NO2 in the range 50-5000 ppb, but there is nothing useful in the data sheet about detection of NO or selectivity against other gases.

Edit: according to this data sheet, the sensor does not detect NO: https://sgx.cdistore.com/datasheets/e2v/1107-Datasheet-MiCS-2714.pdf

Good luck finding a shield!