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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Description Price Maximum Sound Level Minimum Sound Level Resolution Accuracy Class DOSE Measurement Weighting Display Type Battery Type Fast/Slow Time Averaging Data Logging Interface Type Maximum Frequency Maximum Operating Temperature Minimum Frequency
RS Stock No. 123-2225
BrandRS PRO
$528.99
Each
units
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
RS Stock No. 146-4651
BrandRS PRO
$1,349.87
Each
units
130dB 30dB 0.1 dB - - A, C, Z LCD NEDA 1604 Both Yes Micro USB 8kHz +50°C 31.5 Hz
RS Stock No. 146-4654
BrandRS PRO
$10,836.42
Each
units
- - - - - - TFT LCD LR14 - - USB 10kHz +50°C 25 Hz
RS Stock No. 146-4655
BrandRS PRO
$14,623.54
Each
units
- - - - - - TFT LCD LR14 - - USB 20kHz +50°C 12.5 Hz
RS Stock No. 123-2226
BrandRS PRO
$1,503.12
Each
units
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
RS Stock No. 122-4294
BrandRS PRO
$662.31
Each
units
130dB 30dB 0.1 dB - - A, C LCD AA, LR6 - Yes USB 8kHz +50°C 31.5 Hz
RS Stock No. 146-4650
BrandRS PRO
$427.50
Each
units
130dB 30dB 0.1 dB - - A, C, Z LCD NEDA 1604 Both No - 8kHz +50°C 31.5 Hz
RS Stock No. 123-2227
BrandRS PRO
$513.02
Each
units
- - 0.1 dB - Yes A LCD AAA - - - 10kHz +50°C 20 Hz
RS Stock No. 123-2228
BrandRS PRO
$646.52
Each
units
- - 0.1 dB - Yes A LCD AAA - - RS232 10kHz +50°C 20 Hz
RS Stock No. 155-8902
BrandRS PRO
$136.45
Each
units
130dB 35dB - - - A, C LCD - - - Bluetooth 8kHz - 31.5 Hz
RS Stock No. 789-8902
Mfr. Part No.SU 130.
BrandSauter
$323.65
Each
units
130dB 30dB 0.1 dB ISO 961-200 - A LCD - - - RS232 - - -
RS Stock No. 447-7381
Mfr. Part No.GA213
BrandCastle
$1,067.97
Each
units
140dB 35dB 0.1 dB IEC 60651:1979 Type 2, IEC 61672-1:2002 Class 2 - A, C LCD - Backlit 9V Both - - 20kHz +40°C 1 Hz
RS Stock No. 909-3749
Mfr. Part No.GA116L
BrandCastle
$2,381.51
Each
units
143dB 29dB - - Yes A, C, Z LCD Alkaline, PP3 Both Yes USB - +50°C -
RS Stock No. 668-0839
Mfr. Part No.SM-10
BrandAmprobe
$426.72
Each
units
130dB 35dB 0.1 dB ANSI S1.4 Type 2, IEC 651 Type 2 - A, C LCD - - - - 8kHz - 31.5 Hz
RS Stock No. 477-110
Mfr. Part No.CEL-240
$984.00
Each
units
130dB 30dB - ANSI S1.4, IEC 60651, IEC 61672 Yes A, C LCD AAA Both Yes USB - +40°C -
RS Stock No. 477-100
Mfr. Part No.CEL-240/K1/RS
$1,999.15
Each
units
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 Stock No. 909-3745
Mfr. Part No.GA216L
BrandCastle
$1,316.32
Each
units
143dB 29dB - - Yes A, C, Z LCD Alkaline, PP3 Both Yes USB - +50°C -
RS Stock No. 447-9630
Mfr. Part No.GA215
BrandCastle
$1,893.00
Each
units
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
RS Stock No. 800-3183
Mfr. Part No.0563 8170
BrandTesto
$1,086.02
Each
units
130dB 30dB 0.1 dB IEC 60942 Class 2 - A, C Backlight AA Both Yes USB 8kHz +40°C 20 Hz
RS Stock No. 909-1884
Mfr. Part No.GA216B
BrandCastle
$1,204.87
Each
units
140dB 35dB 0.1 dB - Yes A, C LCD Alkaline, PP3 Both Yes - 20kHz - 1 Hz
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