Verkada Sensors contain a wide-variety of sensors that are used to track information about your environment.

Verkada creates recommended sensor value ranges based on data from the Environmental Protection Agency (EPA), the World Health Organization (WHO), the Occupational Safety and Health Administration (OSHA), the American Society of Heating, Refrigeration, and Air-Conditioning Engineers (ASHRAE), and more.

Color Scheme

To make things easy to view at a glance, we associate different colors with the readings (except Air Quality Index, which follows the US AQI color scheme).

Green: Values are within an established range of recommended or safe levels.

Yellow: Values are slightly outside range of recommended or safe values.

Orange: Values are significantly outside range of recommended or safe values.

Red: Values are dramatically outside range of recommended or safe values, often requiring immediate attention.

Temperature

Color-coded temperature ranges are aligned to healthy indoor air temperatures set by government and industry standards. Temperature measurements outside of the green zone may require attention if unexpected or outside of the normal range for this sensor location.

Measurement Range

  • Max: - 40 °F to 194 °F
  • Recommended: 41 °F to 140 °F

Humidity

Relative humidity is the amount of moisture in the air compared to what the air can hold at that temperature. Color-coded relative humidity ranges are aligned to healthy indoor air guidelines set by government and industry standards. Humidity measurements outside of the green zone may require attention if unexpected or outside of the normal range for this sensor location.

Measurement Range

  • Max: 0 - 100%
  • Recommended: 20 - 80%

PM 2.5

Particulate Matter 2.5 (PM 2.5) refers to tiny inhalable particles or droplets in the air that are less than 2.5 microns in width. These particles can have negative health effects, and are caused by dust, vehicle exhaust, burning fuels, cooking, smoking, and vaping. Color-coded PM 2.5 ranges are aligned to healthy indoor air guidelines set by government and industry standards. PM 2.5 measurements outside of the green zone may require attention if unexpected or outside of the normal range for this sensor location.

Measurement Range

  • 0 - 1000 μg/m3

TVOC

A total measure of Volatile Organic Compounds, which are chemicals that evaporate into the air and are emitted by cleaners, paints, varnishes, fragrances, and hundreds of other products. Examples include benzene, ethylene glycol, and formaldehyde. VOCs are measured as a group because of their cumulative effects, with high TVOC values associated with negative health impacts. Color-coded TVOC ranges are aligned to healthy indoor air guidelines set by government and industry standards. TVOC measurements outside of the green zone may require attention if unexpected or outside of the normal range for this sensor location.

Measurement Range

  • 0 - 60,000 ppb

Noise Level

A measure of total noise level at the sensor. Color-coded noise level ranges are aligned to safe noise level guidelines set by the Occupational Safety and Health Administration (OSHA) and other government and industry standards. OSHA regulations state that noise levels cannot exceed 90 dB over an 8 hour period, or 95 dB over a 4 hour period. Noise level measurements outside of the green zone may require attention if unexpected or outside of the normal range for this sensor location.

Measurement Range

  • 20 - 120 dB SPL (A-Weighted)

Vape Index

A score derived from multiple sensors that is strongly correlated with vaping and/or smoking activity. Vape Index measurements outside of the green zone indicate suspected vaping/smoking activity, but could also reflect smoke or fumes from other sources. In particular, smoke from cooking, burning fuel, wildfires, etc. may register highly on the Vape Index.

Measurement Range

  • 0-100 Index

Motion

A measure of changes in infrared light absorption caused by the motion of warm bodies, as measured by a passive infrared sensor. Powered by the same technology as motion sensors for intrusion detection, a “Yes” motion event indicates human/animal motion or other large changes in heat or infrared activity.

Measurement Range

  • Binary - motion detected “Yes” or “No”

Air Quality Index

The U.S. AQI measures total air pollution and provides benchmarks for healthy values. When AQI exceeds 100, air quality is unhealthy: at first for certain sensitive groups of people, then for everyone as AQI values get higher.

Measurement Range

  • 0 - 500

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