- What are sound waves?
Sound waves are longitudinal waves which spread out from their sound source in the form of shock waves in solid bodies, liquids and gases. The human ear can hear a frequency of 16 to 20,000 Hertz. Lower or higher frequencies are not normally recorded by a sound level meter.
Would you like to measure indoors or outdoors? Find your ideal sound level meter.
Sound meter – standard-compliant & high-precision
Statutory standards apply to the field of sound level measurement in workplaces and public spaces. Make sure the configuration of your sound level meter is set up for accuracy classes 0 – 2. This enables a higher level of accuracy to be ensured. Testo's certified sound level meters are ideally suited for noise measurement in workplaces and public spaces.
Testo DB meter according to the current IEC 61672-1 standard
The currently valid IEC 61672-1 standard replaced the old IEC 60651 standard a few years ago. The Testo sound level meters that are certified according to this standard guarantee even higher accuracy.
All-round correct use of sound level meters
Sound level measurement allows the volume of noises to be assessed objectively. With a Testo sound level meter, you also have the ideal instrument for high-precision noise level measurement. This also means you can introduce the appropriate measures to reduce noise emissions based on the correct readings.
Find out important details for correct measurements with your sound level meter here:
- Set time weighting: press the SLOW key for noises whose signal only changes slowly in terms of volume (1 s). For noises with sudden sound level changes (125 ms), press the FAST key.
- Select frequency weighting A/C: for standard sound level measurements, press the A key on your noise meter. Press the C key to assess the low-frequency component of a noise.
- Align microphone: make sure that the microphone is directed towards the sound source.