Sound Level Meters

Sound level meters are handheld electronic devices that take acoustic measurements. They provide readings on the noise level in an environment and usually return a measurement in decibels (dB). Sound level meters are also called decibel meters or noise meters.

Most meters feature an integrated digital display and some have an inbuilt datalogging memory to store readings. Many models can be attached to a smartphone or tablet and the data easily shared. Some models need connecting to a computer to export data.

What is the difference between Class 1 and Class 2?

There are two classes of sound meter; Class 1 and Class 2 (also referred to as Type 1 or Type 2). Sound level meters are given a classification of I or II depending on which international standard they meet. Type 1 or Class 1 sound meters are used for incredibly precise noise measurements (such as in laboratories) as they are able to measure the smallest sound levels. Class 2 sound level meters are usually used in workplaces for assessing and measuring noise.

What is weighting?

Weighting refers to the frequency range that is measured. Some sound meters will only measure one frequency range, while other models are able to measure all.

  • A frequency covers a 20 Hz to 20 kHZ range. However, the sound is cut from the lower and higher ends of the spectrum in order to approximate the frequency that is audible to the human ear.
  • C frequency can measure much higher noise levels, but still covers the frequency heard by the human ear.
  • Z frequency covers the whole frequency range between 10Hz to 20 kHZ, ±1.5dB.
  • Should I calibrate my sound level meter?

    Considering a calibration service your sound level meter will ensure that it always returns the most accurate measurements. It provides you with absolute confidence that your instrument works as expected with the highest accuracy.

    What is a dosimeter?

    Sound level meters measure the noise within a whole environment whereas dosimeters measure personal exposure to noise. Dosimeters (or dosemeters) are typically attached to an individual at work to monitor noise levels.

    Why would I use a sound level meter?

    Sound level meters will give you measurements on the level of noise within an environment. High noise levels can damage hearing, cause hearing loss and can have a detrimental effect on health. With a reading from a sound meter, you can make sure that you have the correct measures in place (such as slowing down machinery to minimise excess noise) and appropriate PPE (Personal Protective Equipment) to minimise risk.

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    Detalii produs Marca Stock Maximum Sound Level Minimum Sound Level Resolution Accuracy Class Weighting Display Type Battery Type Fast/Slow Time Averaging Data Logging Interface Type Maximum Frequency Maximum Operating Temperature Minimum Frequency Model Number p Minimum Operating Temperature Plug Type
    Sound Meter Beha-Amprobe 0 130 (A Weighting & C Weighting)dB 30 (A Weighting) dB, 35 (C Weighting) dB 0.1 dB - A, C LCD NEDA 1604 - Yes USB 8kHz +40°C 31.5 Hz SM-20-A +5°C -
    RS PRO Sound Level Meter RS Pro 86 140dB 70dB 1 dB ANSI S1.25, IEC 61252 A, C, Type 2, Z LCD Li Polymer Both Yes USB - +50°C - - 0°C -
    Sauter SU 130 Sound Level Meter 30 → 130 dB Sauter 54 130dB 30dB 0.1 dB ISO 961-200 A LCD - - - RS232 - - - SU 130 - -
    RS PRO Digital Sound Level Meter 8kHz RS Pro 35 90 dB, 110 dB, 130 dB 30 dB, 45 dB, 65 dB 0.1 dB - A, C, Z LCD NEDA 1604 Both No - 8kHz +50°C 31.5 Hz - -10°C -
    RS PRO SLM1352P Sound Level Meter 8kHz 30 → 130 dB RS Pro 29 130dB 30dB 0.1 dB - A, C LCD AA, LR6 - Yes USB 8kHz +50°C 31.5 Hz SLM1352P -10°C -
    Amprobe SM 10 Sound Level Meter 8kHz 35 → 130 dB Amprobe 22 130dB 35dB 0.1 dB ANSI S1.4 Type 2, IEC 651 Type 2 A, C LCD - - - - 8kHz - 31.5 Hz SM 10 - -
    Testo 815 Sound Level Meter 8kHz 32 → 130 dB Testo 21 130dB 32dB 0.1 dB IEC 60651 Class 2 A, C LCD 9V Both - USB 8kHz +40°C 31.5 Hz Testo 815 0°C Type C - European Plug
    Casella Cel CEL- 240 Sound Level Meter 30 → 130 dB Casella Cel 19 130dB 30dB - ANSI S1.4, IEC 60651, IEC 61672 A, C LCD AAA Both Yes USB - +40°C - CEL- 240 0°C -
    RS PRO SLM52N Sound Level Meter 8kHz 30 → 130 dB RS Pro 19 130dB 30dB 0.1 dB ANSI S 1.4: 1983 Type 2, IEC 61672:2013 Class 2 A, C LCD 9 V Battery - - - 8kHz +50°C 31.5 Hz SLM52N -10°C BS 1363
    RS PRO NDM1355 Sound Level Meter 10kHz 70 → 140 dB(A) RS Pro 10 - - 0.1 dB - A LCD AAA - - RS232 10kHz +50°C 20 Hz NDM1355 0°C -
    RS PRO Sound Level Meter 10kHz RS Pro 10 - - - - - TFT LCD LR14 - - USB 10kHz +50°C 25 Hz - -10°C -
    RS PRO Sound Level Meter 20kHz RS Pro 10 - - - - - TFT LCD LR14 - - USB 20kHz +50°C 12.5 Hz - -10°C -
    RS PRO ISO-TECH SLM1353M Sound Level Meter 8kHz 30 → 130 dB RS Pro 8 130dB 30dB 0.1 dB ANSI S 1.4: 1983 Type 2, IEC 61672-1:2013 Class 2 A, C LCD AA - Yes USB 8kHz +50°C 31.5 Hz SLM1353M -10°C -
    Digital Sound Level Meter SD +Autodata RS Pro 7 90 dB, 110 dB, 130 dB 30 dB, 45 dB, 65 dB 0.1 dB - A, C, Z LCD NEDA 1604 Both Yes Micro USB 8kHz +50°C 31.5 Hz - -10°C -
    Casella Cel CEL-240/K1 Sound Level Meter Casella Cel 4 130dB 30dB - ANSI S1.4:1983 Type 2, IEC 60651:1979 Type 2, IEC 61672-1:2002 Class 2 A, C Digital, Graphic Display AA - Yes - - +40°C - CEL-240/K1 0°C -
    Mini Sound Level Meter with Bluetooth RS Pro 4 130dB 35dB - - A, C LCD - - - Bluetooth 8kHz - 31.5 Hz RS-95 - -
    RS PRO NDM1354 Sound Level Meter 10kHz 70 → 140 dB(A) RS Pro 4 - - 0.1 dB - A LCD AAA - - - 10kHz +50°C 20 Hz NDM1354 0°C -
    Castle GA 113 Digital Sound Level Meter 20kHz Castle 2 140dB 35dB 0.1 dB IEC 60651:1979 Type 1, IEC 61252:1993, IEC 61672-1:2002 Class 1, IEC60804:2001 Type 1 A, C LCD - Backlit 9V Both - - 20kHz +40°C 1 Hz GA 113 0°C -
    Castle GA 215 Sound Level Meter 20kHz 35 → 140 dB Castle 2 140dB 35dB 0.1 dB IEC 60651:1979 Type 2, IEC 60804:2001 Type 2, IEC 61672-1:2002 Class 2 A, C LCD - Backlit 9V Both - - 20kHz +40°C 1 Hz GA 215 0°C -
    Class 2 data logging sound level meter Castle 2 143dB 29dB - - A, C, Z LCD Alkaline, PP3 Both Yes USB - +50°C - L -10°C -
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