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 sound meters feature an integrated digital display and some have an inbuilt 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 I and Class II?


There are two classes of sound meter; Class I and Class II (also referred to as Type I or Type II). Sound level meters are given a classification of I or II depending on which international standard they meet. Type I or Class I sound meters are used for incredibly precise measurements (such as in laboratories) as they are able to measure the smallest sound levels. Class II 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 frequencycovers the whole frequency range between 10Hz to 20 kHZ, ±1.5dB.


Should I calibrate my sound level meter?


Calibrating your sound level meter will ensure that it always returns the most accurate measurements. It provides you with absolute confidence that your meter 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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Omschrijving Prijs Maximum Sound Level Minimum Sound Level Resolution Accuracy Class DOSE Measurement Weighting Display Type Battery Type Calibrated Fast/Slow Time Averaging Data Logging Interface Type Maximum Frequency Maximum Operating Temperature
RS-stocknr. 789-8902
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130dB 35dB 0.1 dB IEC 651 Type 2 - A, C LCD 9V - Both - - - +50°C
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143dB 29dB - - Yes A, C, Z LCD Alkaline, PP3 - Both Yes USB - +50°C
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FabrikantnummerSM-10
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130dB 35dB 0.1 dB ANSI S1.4 Type 2, IEC 651 Type 2 - A, C LCD - - - - - 8kHz -
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FabrikantnummerGA216L
FabrikantCastle
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143dB 29dB - - Yes A, C, Z LCD Alkaline, PP3 RSCAL Both Yes USB - +50°C
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FabrikantnummerSM-10
FabrikantAmprobe
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140dB 35dB - - Yes A, C LCD Alkaline, PP3 - Both Yes USB 20kHz -
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FabrikantnummerGA116E
FabrikantCastle
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133dB 19dB - - Yes A, C, Z LCD Alkaline, PP3 RSCAL Both Yes USB - +50°C
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FabrikantnummerGA116E
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133dB 19dB - - Yes A, C, Z LCD Alkaline, PP3 - Both Yes USB - +50°C
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FabrikantnummerCEL-240/K1/RS
FabrikantCasella Cel
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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
RS-stocknr. 123-2308
FabrikantRS PRO
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130dB 30dB 0.1 dB ANSI S 1.4: 1983 Type 2, IEC 61672:2013 Class 2 - A, C LCD 9 V Battery RSCAL - - - 8kHz +50°C
RS-stocknr. 921-3075
FabrikantnummerGA216B
FabrikantCastle
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140dB 35dB 0.1 dB - Yes A, C LCD Alkaline, PP3 RSCAL Both Yes - 20kHz -
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FabrikantnummerGA216B
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140dB 35dB 0.1 dB - Yes A, C LCD Alkaline, PP3 - Both Yes - 20kHz -
RS-stocknr. 492-339
FabrikantnummerCEL-240/K1/RS
FabrikantCasella Cel
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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 RSCAL - No - - +40°C
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Fabrikantnummer0563 8155
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130dB 32dB 0.1 dB IEC 60651 Class 2 - A, C LCD 9V RSCAL Both - - 8kHz +40°C
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Fabrikantnummer0563 8155
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