# View Air Quality Sensor Data

Verkada [Air Quality Sensors](https://docs.verkada.com/docs/air-quality-sensors-overview.pdf) have varied readings that allow you to gain more insight into your building or monitor areas where video monitoring is not allowed.

## Sensor data by model

The data available depends on your sensor model. See [Sensor Readings](https://help.verkada.com/air-quality/sensor-data/air-quality-sensor-readings) for more information about the breakdown of the different sensor readings per model.

### [SV21](https://docs.verkada.com/docs/air-quality-sensors-overview.pdf)

| Sensor Reading      | Data Output                                                                                                                                                                          |
| ------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| **Temperature**     | Room temperature                                                                                                                                                                     |
| **Humidity**        | Room humidity                                                                                                                                                                        |
| **Heat Index**      | A combined index that represents what the temperature feels like to the human body when relative humidity is combined with the temperature                                           |
| **Humidex**         | Humidex measures how hot we feel in hot, humid weather.                                                                                                                              |
| **Mold Risk Index** | The Mold Risk Index assesses the likelihood of mold growth in confined, unventilated spaces, based on temperature and humidity levels.                                               |
| **Dew Point**       | The dew point is the temperature to which air must be cooled, at constant pressure, for the air to reach 100% relative humidity, meaning the air becomes saturated with water vapor. |
| **Carbon Dioxide**  | Concentration of CO2 gas, measured in ppm                                                                                                                                            |
| **Tamper**          | Indicates if the sensor is being tampered with                                                                                                                                       |

### [SV23](https://docs.verkada.com/docs/air-quality-sensors-overview.pdf)

Includes all data output of the [SV21](https://docs.verkada.com/docs/air-quality-sensors-overview.pdf), plus the following.

| Sensor Reading                                                                           | Data Output                                                                                                           |
| ---------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------- |
| **Vape Index**                                                                           | A combined index that represents the likelihood that someone is vaping in the vicinity of the sensor                  |
| **Noise Level**                                                                          | Noise level in the room, measured in dB                                                                               |
| **Air Quality Index**                                                                    | U.S. Air Quality Index, derived from multiple sensors                                                                 |
| **TVOC**                                                                                 | Volatile organic compound level in the air measured in an index                                                       |
| <p><strong>PM 2.5</strong></p><p><strong>PM 4.0</strong><br><strong>PM 10.0</strong></p> | Fine particulate level measured in microgrammes per cubic meter                                                       |
| **Motion**                                                                               | Motion detected by the Passive Infrared (PIR) sensor                                                                  |
| **RESET® Viral Index**                                                                   | The RESET® Viral Index is an index designed to assess the likelihood of airborne virus transmission in indoor spaces. |

### [SV25](https://docs.verkada.com/docs/air-quality-sensors-overview.pdf)

Includes all data output of the [SV23](https://docs.verkada.com/docs/air-quality-sensors-overview.pdf), plus the following.

| Sensor Reading          | Data Output                                               |
| ----------------------- | --------------------------------------------------------- |
| **Carbon Monoxide**     | Concentration of Carbon Monoxide gas, measured in ppm     |
| **Formaldehyde (CH2O)** | Concentration of Formaldehyde (CH2O) gas, measured in ppb |
| **Barometric Pressure** | Measurement of air pressure in the atmosphere             |

### [SV11](https://www.verkada.com/sensors/sv11/)

Verkada’s first-generation sensor outputs data on the following readings.

| Sensor Reading                                                                           | Data Output                                                                                                                                                                          |
| ---------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| **Vape Index**                                                                           | A combined index that represents the likelihood that someone is vaping in the vicinity of the sensor                                                                                 |
| **Temperature**                                                                          | Room temperature                                                                                                                                                                     |
| **Humidity**                                                                             | Room humidity                                                                                                                                                                        |
| **Heat Index**                                                                           | A combined index that represents what the temperature feels like to the human body when relative humidity is combined with the temperature                                           |
| **Humidex**                                                                              | Humidex measures how hot we feel in hot, humid weather.                                                                                                                              |
| **Mold Risk Index**                                                                      | The Mold Risk Index assesses the likelihood of mold growth in confined, unventilated spaces, based on temperature and humidity levels.                                               |
| **Dew Point**                                                                            | The dew point is the temperature to which air must be cooled, at constant pressure, for the air to reach 100% relative humidity, meaning the air becomes saturated with water vapor. |
| **Noise Level**                                                                          | Noise level in the room, measured in dB                                                                                                                                              |
| **Air Quality Index**                                                                    | U.S. Air Quality Index, derived from multiple sensors                                                                                                                                |
| **TVOC**                                                                                 | Volatile organic compound level in the air, measured in parts per million                                                                                                            |
| <p><strong>PM 2.5</strong></p><p><strong>PM 4.0</strong><br><strong>PM 10.0</strong></p> | Fine particulate level measured in micrograms per cubic meter                                                                                                                        |
| **Tamper**                                                                               | Indicates if the sensor is being tampered with                                                                                                                                       |
| **Motion**                                                                               | Motion detected by the PIR sensor                                                                                                                                                    |

## View details about your sensor

{% stepper %}
{% step %}
**In Verkada Command, go to All Products > Air Quality.**
{% endstep %}

{% step %}
**Click a sensor device to go to the sensor’s Details page.**
{% endstep %}

{% step %}
**Select the sensor reading you want to see. Then select the time range for which you would like to view. By default, you should see the output of Today for the selected reading.**

<div align="left" data-with-frame="true"><img src="https://3057705728-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FJtgmyWYlTEX9DpjvBwTL%2Fuploads%2Fgit-blob-4033bb26fa1ecaed455f61e83e36bc715b4fcd8e%2Fff989ea7e66a672094e4684f47eb2ba324e3bae7.png?alt=media" alt="" width="1698"></div>
{% endstep %}

{% step %}
**Select which reading you want to view. For a detailed view, select from the list. Learn more about** [**sensor readings**](https://help.verkada.com/air-quality/sensor-data/air-quality-sensor-readings)**.**

As you scrub through the graph, the side readings also follow the time frame you hover over.

​

<div align="left" data-with-frame="true"><img src="https://3057705728-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FJtgmyWYlTEX9DpjvBwTL%2Fuploads%2Fgit-blob-032d05dd20c15e103c2340c5094fa0489ee0e796%2F580c397ba66bd34a9fc284b3353b2733dec0953d.png?alt=media" alt="" width="375"></div>
{% endstep %}
{% endstepper %}

{% hint style="warning" %}
When you select a reading from the list on the left, the **Alerts** section below filters alerts for the selected reading. You can view all alerts by changing the filter on the right to **All Sensors**.
{% endhint %}

## Select a time range and custom date range

{% stepper %}
{% step %}
**In Verkada Command, go to All Products > Air Quality.**
{% endstep %}

{% step %}
**Select a sensor to customize the time range.**
{% endstep %}

{% step %}
**Above the graph, select the dropdown menu and choose the date range of preset options (This Hour, This Week, This Month, This Year) to understand your device’s environment over a range of time. To return to the live sensor readings, at the top of the list, select Live.**

<div align="left" data-with-frame="true"><img src="https://3057705728-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FJtgmyWYlTEX9DpjvBwTL%2Fuploads%2Fgit-blob-0ffe28ad7eff0a2d7e76a2655767abe6812a0f9b%2Fe169867e9a71378b19580a82b5f6a6449e87955a.png?alt=media" alt="" width="389"></div>
{% endstep %}

{% step %}
**(Optional) Specify a custom or present range using one of these options:**

* On the dropdown menu above the graph, select **Custom** to specify a range of time from the calendar, and click **Apply**. (As your date range increases, the resolution of your chart decreases.)

  <div align="left" data-with-frame="true"><img src="https://3057705728-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FJtgmyWYlTEX9DpjvBwTL%2Fuploads%2Fgit-blob-87595f2419c8b2ffecf30255c7aa47a4bfe4bffe%2Faf0166e2ee88bee6d1ddaf49f3748a4eb1372d42.png?alt=media" alt="" width="1587"></div>
* Click and drag the cursor over the desired time frame. This zooms in on the data. (Click **Reset** to zoom out to the original time frame.) This can be useful in understanding how long-term and macro changes in your environment, such as seasons, can affect air quality or cleaning habits.

{% embed url="<https://player.vimeo.com/video/857217104?h=b76639b4b9>" %}
{% endstep %}
{% endstepper %}

## Data retention and resolution

The Verkada sensors store sensor data for 365 days. After the 365th day, the oldest sensor data is overwritten with the newest data.

* For the SV11, data is stored at a **1-second** resolution for **30 days**. For **days 31–365**, data is stored at a **5-minute** resolution.
* For the SV20 series, data is stored at a **5-second** resolution for **30 days**. For days **31–365**, data is stored at a **5-minute** resolution.

### Export sensor data and alerts

{% stepper %}
{% step %}
**In Verkada Command, go to All Products > Air Quality.**
{% endstep %}

{% step %}
**Select a sensor.**
{% endstep %}

{% step %}
**On the toolbar, click the Download as CSV icon to export sensor data or sensor alert data via a comma-separated value (CSV) file.**

<div align="left" data-with-frame="true"><img src="https://3057705728-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FJtgmyWYlTEX9DpjvBwTL%2Fuploads%2Fgit-blob-6a2463010b5f4a409c4210735fdddf07d72383c7%2Fa9f92bacc6f19fa3346c4ad5f6137401f6082761.png?alt=media" alt="" width="301"></div>
{% endstep %}

{% step %}
**On Download CSV**

a. Select **Sensor Data** or **Alerts**, depending on what type of data you want to download.\
b. Check the box next to the sensor readings you want to download. By default, the temperature is Fahrenheit. You can choose Celsius, if preferred.\
c. Set the date range (**Last 5 Minutes**, **Last Hour**, **Last Day**, **Last Week**, **Last Month**, **Last Year**, **Custom**) for the report.\
d. Choose the resolution (**1 Minute**, **5 Minutes**, **30 Minutes**, **1 Hour**, **1 Day**) and then click **Export**.\
​

<div align="left" data-with-frame="true"><img src="https://3057705728-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FJtgmyWYlTEX9DpjvBwTL%2Fuploads%2Fgit-blob-c27ddcad9cbf94654665e3823b205d403fa98326%2F62554bfee349f2b293a95f93f72cc9ddcd033569.png?alt=media" alt="" width="629"></div>
{% endstep %}
{% endstepper %}

For sensor data, you can export data at various predefined resolutions (5s, 1min, 5min, 30min, 1hr, 1day). The table shows the maximum resolution that can be exported for a given time range.

|                  |                        |
| ---------------- | ---------------------- |
| **Time Range**   | **Maximum Resolution** |
| 1 hour           | 5 seconds              |
| 1–24 hours       | 1 minute               |
| 24 hours–30 days | 5 minutes              |
| 30–180 days      | 30 minutes             |
| 180–365 days     | 1 hour                 |

Once you click **Export**, Command sends an email with the CSV attached. This process can take up to 10 minutes, depending on the amount of data being requested.