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. 668-0839
Mfr. Part No.SM-10
BrandAmprobe
HK$1,778.78
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
HK$4,285.30
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
HK$6,618.43
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. 498-0102
Mfr. Part No.0563 8155
BrandTesto
HK$3,099.01
Each
units
130dB 32dB 0.1 dB IEC 60651 Class 2 - A, C LCD 9V Both - USB 8kHz +40°C 31.5 Hz
RS Stock No. 909-3742
Mfr. Part No.GA116I
BrandCastle
HK$9,368.07
Each
units
140dB 35dB - - Yes A, C - - - Yes USB 20kHz - 1 Hz
RS Stock No. 909-1884
Mfr. Part No.GA216B
BrandCastle
HK$5,308.57
Each
units
140dB 35dB 0.1 dB - Yes A, C LCD Alkaline, PP3 Both Yes - 20kHz - 1 Hz
RS Stock No. 800-3183
Mfr. Part No.0563 8170
BrandTesto
HK$5,789.45
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. 909-3749
Mfr. Part No.GA116L
BrandCastle
HK$11,866.24
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
HK$5,095.45
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. 447-7381
Mfr. Part No.GA213
BrandCastle
HK$6,522.99
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. 468-3895
Mfr. Part No.P01185501Z
HK$3,520.86
Each
units
130dB 35dB 0.1 dB IEC 651 Type 2 - A, C LCD 9V Both - - - +50°C -
RS Stock No. 909-3745
Mfr. Part No.GA216L
BrandCastle
HK$8,125.00
Each
units
143dB 29dB - - Yes A, C, Z LCD Alkaline, PP3 Both Yes USB - +50°C -
RS Stock No. 909-1923
Mfr. Part No.GA116E
BrandCastle
HK$12,433.55
Each
units
133dB 19dB - - Yes A, C, Z LCD Alkaline, PP3 Both Yes USB - +50°C -
RS Stock No. 447-9646
Mfr. Part No.GA256
BrandCastle
HK$4,318.83
Each
units
140dB 75dB 0.1 dB IEC 61252:1993 Yes A, C LCD - Backlit 9V Both - - 20kHz +40°C 1 Hz
RS Stock No. 174-9559
BrandRS PRO
HK$6,738.53
Each
units
140dB 70dB 1 dB ANSI S1.25, IEC 61252 Yes A, C, Type 2, Z LCD Li Polymer Both Yes USB - +50°C -
RS Stock No. 146-4654
BrandRS PRO
HK$28,165.08
Each
units
- - - - - - TFT LCD LR14 - - USB 10kHz +50°C 25 Hz
RS Stock No. 146-4651
BrandRS PRO
HK$3,380.28
Each
units
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
RS Stock No. 184-6782
Mfr. Part No.SM-20A
HK$4,308.99
Each
units
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
RS Stock No. 123-2228
BrandRS PRO
HK$3,498.00
Each
units
- - 0.1 dB - Yes A LCD AAA - - RS232 10kHz +50°C 20 Hz
RS Stock No. 146-4655
BrandRS PRO
HK$32,309.26
Each
units
- - - - - - TFT LCD LR14 - - USB 20kHz +50°C 12.5 Hz
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