How far can a noise sensor measure?

The measurement distance of a noise sensor is influenced by several factors. Below is an overview of these factors and an estimation of the measurement distance: 

Main Factors Affecting Measurement Distance 

1. Noise Source Intensity:

   - Stronger noise sources (such as sounds around 130dB) can be detected from a greater distance.

   - Medium-intensity noises (around 80-90dB, such as traffic noise or human voices) are typically effective within a range of 10 to 30 meters.

   - Low-intensity noises (around 30-40dB, such as slight airflow or distant human voices) may only be detectable within a few meters to about 10 meters.

2. Ambient Noise:

   - When the background noise level is high, it becomes difficult to accurately measure weaker noise sources at longer distances. 

3. Propagation Conditions:

   - Factors such as temperature, humidity, wind speed, and obstacles affect the speed and attenuation of sound, which in turn affects the measurement distance. 

4. Sensor Sensitivity:

   - The accuracy and measurement range indirectly reflect the sensor's sensitivity. While high accuracy means greater responsiveness to noise changes, it does not directly determine the measurement distance.

Noise sensor technical parameters:

Estimation of Measurement Distance 

- For high-intensity noise sources (around 130dB), the sensor can detect noise accurately from several tens of meters or even farther.

- For medium-intensity noise sources (around 80-90dB), the measurement distance is generally between 10 and 30 meters.

- For low-intensity noise sources (around 30-40dB), the effective measurement distance is typically within a few meters to about 10 meters. 

Notes: 

- These distances are estimates based on ideal conditions, and in actual applications, environmental factors (such as buildings, terrain, etc.) should also be taken into account.

- It is recommended to perform tests in real-world scenarios or contact the manufacturer for more detailed technical support to determine the exact operating range.

Noise Sensor Data Sheet

NBL-W-NS Noise-Sensor-Instruction-Manual.pdf