# Capability carbonDioxideMeasurement **URL:** \ **Category:** Capability Type Suggestions\ **Created:** [February 12, 2015, 2:27am UTC](https://community.smartthings.com/t/capability-carbondioxidemeasurement/11049 "2015-02-12T02:27:41Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![jody.albritton](https://yyz2.discourse-cdn.com/smartthings/user_avatar/community.smartthings.com/jody.albritton/32/220661_2.png) [@jody.albritton](https://community.smartthings.com/u/jody.albritton)\ **Post date:** [February 12, 2015, 2:27am UTC](https://community.smartthings.com/t/capability-carbondioxidemeasurement/11049/1 "2015-02-12T02:27:41Z")
Capability to display a Carbon Dioxide(Capability.carbonDioxideMeasurement) measurement in parts per million. ---
**Author:** ![tgauchat](https://yyz2.discourse-cdn.com/smartthings/user_avatar/community.smartthings.com/tgauchat/32/49516_2.png) [@tgauchat](https://community.smartthings.com/u/tgauchat)\ **Post date:** [February 12, 2015, 3:03am UTC](https://community.smartthings.com/t/capability-carbondioxidemeasurement/11049/2 "2015-02-12T03:03:52Z")
> [@jody.albritton](#): > > Co2 measurement. Carbon Dioxide like in soda and green houses? (Harmless) Or CO… Carbon Monoxide like from cars and and barbecues? (require alarms in California garages and with gas furnaces…). ---
**Author:** ![jody.albritton](https://yyz2.discourse-cdn.com/smartthings/user_avatar/community.smartthings.com/jody.albritton/32/220661_2.png) [@jody.albritton](https://community.smartthings.com/u/jody.albritton)\ **Post date:** [February 12, 2015, 3:12am UTC](https://community.smartthings.com/t/capability-carbondioxidemeasurement/11049/3 "2015-02-12T03:12:18Z")
CO2 is Carbon Dioxide (Two Oxygen) CO is Carbon Monoxide (One Oxygen) Carbon Dioxide is not completely harmless. If your house is not properly ventilated the Co2 levels can rise. Symptoms caused by carbon dioxide are directly related to the fact that increasing carbon dioxide levels cause decreasing oxygen levels in the body, hampering the flow of oxygen to the brain. If the concentration of the gas is still relatively low, common symptoms include headaches, an increasing pulse rate, uncharacteristically high fatigue, and breathing difficulties. When concentration of the gas reaches a high level above 30,000 ppm (parts per million), symptoms can include heavy nausea, dizziness, or vomiting. ---
**Author:** ![tgauchat](https://yyz2.discourse-cdn.com/smartthings/user_avatar/community.smartthings.com/tgauchat/32/49516_2.png) [@tgauchat](https://community.smartthings.com/u/tgauchat)\ **Post date:** [February 12, 2015, 3:28am UTC](https://community.smartthings.com/t/capability-carbondioxidemeasurement/11049/4 "2015-02-12T03:28:53Z")
_Understood, thanks._ **For consistency** , then, I suggest the name and attributes to be _similar_ to the existing capability for CO (and/or, that capability needs enhancement too). ![](https://global.discourse-cdn.com/smartthings/original/2X/9/9e8c35500d85212e677b47350b155aeba6a02f24.png) ---
**Author:** ![jody.albritton](https://yyz2.discourse-cdn.com/smartthings/user_avatar/community.smartthings.com/jody.albritton/32/220661_2.png) [@jody.albritton](https://community.smartthings.com/u/jody.albritton)\ **Post date:** [February 12, 2015, 3:33am UTC](https://community.smartthings.com/t/capability-carbondioxidemeasurement/11049/5 "2015-02-12T03:33:57Z")
Thanks. I edited the title to make it look more like temperatureMeasurement. ---
**Author:** ![tgauchat](https://yyz2.discourse-cdn.com/smartthings/user_avatar/community.smartthings.com/tgauchat/32/49516_2.png) [@tgauchat](https://community.smartthings.com/u/tgauchat)\ **Post date:** [February 12, 2015, 3:44am UTC](https://community.smartthings.com/t/capability-carbondioxidemeasurement/11049/6 "2015-02-12T03:44:43Z")
> [@jody.albritton](#): > > I edited the title to make it look more like temperatureMeasurement. Thanks; so unlike “xDetector”, this would be a Device that actually returns a numeric measurement value in parts per million. * * * **Meta (I’ll move up to Category Topic, but here at the moment for context…):** Current Capabilities name the “obvious” attribute something redundantly similar to the Capability Name, but not always (e.g., capability.switch, Attribute: switch; but capability.beacon, Attribute: presence – probably because Beacon seems redundant to capability.presence … but that’s another Topic). From a polymorphism standpoint, I’d prefer an Attribute called “`value`” for every Capability; but too late now. * * * So this “`capability.carbonDioxideMeasurement`” would have Attribute: “`carbonDioxide`”? ( **NB:** I am _not_ suggesting the Attribute name "`carbonDioxide`_`Measurement`_ because that would be inconsistent with the Attributes of current Capabilities Temperature Measurement, Illuminance Measurement, etc.) ![](https://global.discourse-cdn.com/smartthings/original/2X/6/6a260b5d6d5a07fcad9de56592bec18800bd99f0.png) ---
**Author:** ![thrash99er](https://avatars.discourse-cdn.com/v4/letter/t/e9c0ed/32.png) [@thrash99er](https://community.smartthings.com/u/thrash99er)\ **Post date:** [February 12, 2015, 6:28am UTC](https://community.smartthings.com/t/capability-carbondioxidemeasurement/11049/7 "2015-02-12T06:28:12Z")
I second that for @jody.albritton I would like to be able to create alerts off my CO2 levels from my Netatmo weather station. ---
**Author:** ![Kristopher](https://yyz2.discourse-cdn.com/smartthings/user_avatar/community.smartthings.com/kristopher/32/15578_2.png) [@Kristopher](https://community.smartthings.com/u/Kristopher)\ **Post date:** [February 12, 2015, 2:33pm UTC](https://community.smartthings.com/t/capability-carbondioxidemeasurement/11049/8 "2015-02-12T14:33:55Z")
I recommend expanding this capability to something more along the lines of capability.concentration This way, we can measure co2 in ppm, co in ppm, etc. I have a cheap laser particle sensor: > **[Dylos Laser Particle Counter (DC1100) - with Computer Interface: Household Alarms And Detectors: Amazon.com: Industrial & Scientific](https://www.amazon.com/Dylos-Laser-Particle-Counter-DC1100/dp/B004AWG7YM)** > > A true Laser Particle Counter with 2 size ranges - small (bacteria, mold, etc) large (pollen, etc.) DC1100 features technology and engineering that allows monitoring of indoor air quality with an LCD ... That also measures particle size in ppm. Just a thought 🙂 ---
**Author:** ![jody.albritton](https://yyz2.discourse-cdn.com/smartthings/user_avatar/community.smartthings.com/jody.albritton/32/220661_2.png) [@jody.albritton](https://community.smartthings.com/u/jody.albritton)\ **Post date:** [February 12, 2015, 2:36pm UTC](https://community.smartthings.com/t/capability-carbondioxidemeasurement/11049/9 "2015-02-12T14:36:11Z")
There is already a CO measurement capability. That is the one that would need expanding as it currently supports only detected/not detected. Concentration could be an attribute for both capabilities. ---
**Author:** ![jody.albritton](https://yyz2.discourse-cdn.com/smartthings/user_avatar/community.smartthings.com/jody.albritton/32/220661_2.png) [@jody.albritton](https://community.smartthings.com/u/jody.albritton)\ **Post date:** [February 16, 2016, 5:53pm UTC](https://community.smartthings.com/t/capability-carbondioxidemeasurement/11049/10 "2016-02-16T17:53:03Z")
This capability has been added and documented.