Gravity Analog Sound Level Meter

DFRobotSKU: RB-Dfr-792
Manufacturer #: SEN0232

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Sale price ¥6,780

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  • Basic noise instrument that measures the sound level of the surrounding environment
  • Simple Conversion: linear analog output
  • Linear correspondence: 30~130dBA, no complex algorithm is required
  • Supports a wide input voltage of 3.3~5.0V and a voltage output of 0.6~2.6V
  • Can be applied to environmental noise testing, such as highway noise monitoring station, etc.
  • Compatible with Arduino Uno R3 USB Microcontroller

The Gravity Analog Sound Level Meter (also known as the decibel meter, noise meter) is a basic noise measurement instrument. This sound level meter is compatible with Arduino. It can accurately measure the sound level of the surrounding environment. This product uses an instrument circuit and a low noise microphone. It supports a wide input voltage of 3.3~5.0V and a voltage output of 0.6~2.6V.

Gravity Analog Sound Level Meter- Click to Enlarge

The decibel value is linear with the output voltage, which leads to a simple conversion, without complex algorithm. Sound level meter is widely used in environmental noise detection, such as highway noise monitoring station, room noise monitoring and so on.

  • 1 x Analog Sound Level Meter
  • 1 x Gravity Analog Cable 3Pin
  • 60mm x 43mm / 2.37in x 1.68in
  • Measuring Range: 30dBA ~ 130dBA
  • Measurement Error: ±1.5dB
  • Frequency Weighted: A Weighted
  • Frequency Response: 31.5Hz ~ 8.5KHz
  • Time Characteristics: 125ms
  • Input Voltage: 3.3 ~ 5.0V
  • Input Current: 22mA@3.3V, 14mA@5.0V
  • Output Voltage: 0.6 ~ 2.6V

Customer Reviews

Based on 1 review
good choice for monitoring sound with Arduino

The widely available much simpler boards containing just the small electret mics used in this device, with an amplifier, are good for little more than listening for a loud noise against a quieter background. This device gives a reasonable approximation to sound measured in decibels and it's trivially easy to use because of its analog voltage output that's linearly related to sound in units of dBA. If you really want to monitor sound levels with Arduinos, this is the way to do it.

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