Sound Meters (34 Products)

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  1. Metrel MI6301 Sound Meter EU Fons Euro Set Sound 1 All Metrel Products
     
    Metrel MI6301 FonS Class 2 Sound Meter - Euro Set
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    • High accuracy class 2 sound meter
    • A, C and Z weightings
    • Downloadable device with built in memory
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    SKU: MI6301 EU
  2. Metrel MI6301 PR Sound Meter Fons Pro Set All Metrel Products
     
    Metrel MI6301 Class 1 Sound Meter - Pro Set
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    • Display 21 different sound qualities
    • Take real-time octave and one third octave frequency measurements
    • The ability to record up to 80 days worth of data
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    SKU: MI6301 PR
  3. Extech 407730 Digital Sound Level Meter All Extech Products
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    Extech 407730 Digital Sound Level Meter
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    • Analogue bargraph and 2000-count LCD display
    • Lightweight, auto-off and slow/fast response time
    • Records min/max values using electret condenser microphone
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    SKU: 407730
  4. UNI T UT352 Sound Level meter All UNIT Products
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    UNI-T UT352 Type 2 Sound Level Meter
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    • Capable of measuring up to 130 decibels and frequencies of 8,000 Hertz
    • A range of features including a hold function and a MIN/MAX function
    • Capable of storing over 60 pieces of data
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    SKU: UT352
  5. Kewtech KEW325 Light Meter All Kewtech Products
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    Kewtech KEW325 Sound Meter
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    • Measuring range of 32 to 130dB
    • High quality 1/2" electret microphone
    • Selectable frequency and time weighting
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    SKU: KEW325
  6. Sauter SU 130 Professional Sound Meter - Kit All Sauter Products
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    Sauter SU 130 Professional Sound Meter
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    • Measure noise intensity within workplaces
    • Differentiate between normal noise influences and excessive noise influences
    • Internal memory with the capacity to store up to thirty measurements 
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    SKU: SU 130
  7. Amprobe Sm 10 Sound Meter - Kit All Beha-Amprobe Products
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    Beha-Amprobe SM-10 Type 2 Sound Meter
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    • Professional sound meter made to meet the standards of type 2 classifications
    • Accurate, reliable measurements of sound within 0.1dB
    • A and C frequency weighting options cater for different analysis types
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    SKU: 3052366
  8. Extech SL510 Sound Level Meter - Kit All Extech Products
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    Extech SL510 Sound Meter
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    • ‘A’ &‘C’ Frequency Weighting 
    • Backlit display
    • ±1dB high accuracy 
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    SKU: SL510
  9. Martindale SP79 Class 2 Sound Level Meter - Kit All Martindale Products
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    Martindale SP79 Class 2 Sound Level Meter
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    • Measure sound levels from 32 to 130dB
    • Selectable A and C frequency weighting
    • In compliance with Class 2 regulations - BS EN 61672-1
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    SKU: MARSP79
  10. amprobe ut 300 ultrasonic transmitter All Beha-Amprobe Products
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    Beha-Amprobe UT-300 Ultrasonic Transmitter
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    SKU: 2734446
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About Sound Meters

Used mainly for measuring sound in industrial and environmental areas and for quantifying sound levels on aircraft, a sound level meter is an essential tool for professionals working in areas where measuring sound accurately is a high priority.

A sound level meter from Tester will allow you to measure various amounts of sound within your workspace, ensuring that it is at a safe operating level for human ears. In noisy environments, not protecting employees’ ears can lead to noise-induced deafness, so it is important to evaluate the sound levels within your workspace if you're working with loud machinery, devices or vehicles.

When measuring the levels of noise in an area, regulations state that the level of LEP,d (worker’s daily exposure to noise) must conform to certain standards as dictated by the Physical Agents Noise Directive; an EU directive which came into for in April 2006. These are:

  • Lower action level (LEP,d 80dB(A)) – Individual hearing protectors should be made available, and training and information on the risk of hearing damage must be given to workers.
  • Upper action level (LEP,d 85dB(A)) – Noise must be reduced where it can be. All employees must have hearing protectors and make sure they wear them. Again, training and information must be provided on correctly using the hearing protectors.
  • Exposure limit (LEP,d 87dB(A)) – Under no circumstances should the exposure of the worker exceed these limits as it can be extremely dangerous.

By using a sound meter you can accurately measure the daily exposure a worker may be exposed to then take relevant steps to ensure their hearing doesn’t suffer lasting damage.

Sound Meter Types (Classes)

Sound level meters are not placed into one collective group - depending upon applicable standards they are defined as what's known as sound meter classes, or sound meter types. The most generally accepted definition of a sound meter comes from IEC regulations, which defines that sound meters are placed in two different classes.

Known as class 1 and class 2 sound meters, this standard defines the difference between the two in the meters' overall tolerance for error. Class 1 meters generally ship with wider frequency range and tighter tolerance, whereas class 2 meters are defined by the fact that they have lower frequency wider and lesser tolerance. This means that Class 1 sound level meters are much more accurate and therefore are much more acceptable for use in noise surveys, particularly where measurement accuracy is of the utmost importance.

In addition to classes, the ruling IEC 61672-1 inserts sound meters into "three kinds of sound measuring instruments". These are defined as a conventional sound level meter, an integrated-averaging sound level meter and an integrating sound level meter.

Certain types of sound meters - which are governed over by IEC 61252: 1993 - are known as noise dosimeters (noise dosemeters in Britain). These meters are designed to integrated directly with a person to determine the noise exposure of that person over a time period and are commonly used to comply with regulations such as Occupational Safety and Health (OSHA) 29 CFR 1910.95 Occupational Noise Exposure Standard or EU Directive 2003/10/EC.

Accepted Sound Meter Standards

In order to be classified as acceptable for use a sound meter generally must adhere to the standard IEC 61672 (or British standard equivalent BS EN 61672) in order to gain certifiable status as a Class 1 or Class 2 sound lever meter. Depending on the type of meter being used this standard may or may not be applicable in conjunction with other standards, and there are several other standards available for things such as noise dosimeters, personal sound exposure meters and various other devices. Sound calibrators are also governed over by their own standards.

The following is a list of the currently accepted sound meter standards available around the world:

IEC 61672 - Electroacoustics - Sound Level Meters

The most commonly used standard, IEC 61672 is used as a quantifying tool for defining whether a modern sound meter is given class 1 or class 2 status. The status is given depending on the tolerance and overall frequency range of the sound meter; class 1 meters have much higher tolerance than class 2 do, making them a much more accurate tool for quantifying overall sound levels.

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