Business devices with a noise sensor
The following Airthings for Business devices include an ambient noise sensor:
Space Pro
Space CO₂
Space CO₂ Mini
Ambient noise sensor specifications
The noise sensor samples the environment every 6 seconds, capturing a 60-millisecond snapshot each time. These snapshots are used to calculate an average noise level, which is then displayed in the dashboard every 5 minutes.
Due to the brief nature of the samples, the sensor may not detect short, loud noises (for example, a book falling), especially if they occur between sampling points. These devices are designed to monitor ambient noise levels over time, not to function as real-time sound monitors.
What is dBA?
The sound levels are measured in dBA. DBA stands for A-weighted decibels, a unit that reflects how the human ear perceives sound. The “A-weighting” filter reduces the impact of very low and very high frequencies, which we are less sensitive to. This makes dBA a more accurate measure of perceived loudness and is commonly used in noise regulation, workplace safety, and environmental noise monitoring.
Data Privacy and Recording
Airthings noise sensors do not record audio and cannot capture conversations. The sensor does not operate as a microphone. Instead, it collects short noise samples solely to calculate average sound levels. These samples are immediately discarded, and only average decibel values are stored for trend visualization in the dashboard.
Distance and placement
Distance matters: Noise intensity decreases with distance. These devices are most effective for detecting local noise sources, not distant or faint sounds.
Correct placement is essential:
Position the device facing the primary noise source.
Avoid placing it near windows, vents, or machinery, as these can affect accuracy.
Make sure the device is mounted or placed in a way that reflects the typical sound exposure in the room or zone being monitored.