Compact digital sound level meter 30.0 to 130.0 dBA - class 2 0732SI

Compact digital sound level meter 30.0 to 130.0 dBA - class 2

Class 2 digital sound level meter in a compact case for measuring sound levels in dB(A), the unit that best approximates the sensitivity of the human ear. It has a tripod mount on the back so it can be attached to a classic 1952KO tripod or a 1953KO mini tripod.

Ideal for measuring vehicle noise.

Description:
- Sound level meter: 30.0 to 130.0 dBA / ±1.5 dBA
- Filters: Slow/Fast
- Maxi / Mini / Hold / Auto ON-OFF
- Backlight
Backlight - Tripod mount
- Microphone Ø 12.9 mm / 0050SI calibrator compatible
- D : 103x54x28 mm / 139 g
- Batteries: 3xAAA

The sound level meter must be positioned at a distance of 1 metre from the sound source to ensure correct measurement.

What is the difference with a sound level meter on a smartphone?

Smartphone applications interpret the electrical signal generated by the microphone, in a similar way to a sound level meter. However, these applications are often considered to be gadgets, depending on the version available.

Professional sound level meter: designed for accurate measurements and calibrated to standards (e.g. IEC 61672). It has a high-quality electrostatic microphone capable of capturing a wide range of frequencies with stable sensitivity. It generally measures a wide range of frequencies (generally from 20 Hz to 20 kHz) with a high dynamic range (e.g. 30 dB to 130 dB).

Mobile app: Accuracy is limited by the quality of the phone's microphone, which is not designed to measure high or very low sound levels accurately. In addition, lack of proper calibration reduces its reliability. Smartphone microphones are often limited to a few kHz and a more restricted dynamic range (e.g. 30 dB to 90 dB), which distorts the results, particularly for very high or very low-pitched sounds