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Sound Meters (34 Products)

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  1. UNI T UT352 Sound Level meter in hand
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    UNI-T UT352 Type 2 Sound Level Meter
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    £65.99 £54.99
    • 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
    108 Reward Points
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    SKU: UT352
  2. Extech 407730 Digital Sound Level Meter - Kit
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    Extech 407730 Digital Sound Level Meter
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    £82.80 £69.00
    • Analogue bargraph and 2000-count LCD display
    • Lightweight, auto-off and slow/fast response time
    • Records min/max values using electret condenser microphone
    138 Reward Points
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    SKU: 407730
  3. Kewtech KEW325 Light Meter - Kit
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    Kewtech KEW325 Sound Meter
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    £104.40 £87.00
    • Measuring range of 32 to 130dB
    • High quality 1/2" electret microphone
    • Selectable frequency and time weighting
    174 Reward Points
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    SKU: KEW325
  4. Sauter SU 130 Professional Sound Meter - Kit
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    Sauter SU 130 Professional Sound Meter
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    £118.80 £99.00
    • 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 
    198 Reward Points
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    SKU: SU 130
  5. Extech SL510 Sound Level Meter - Kit
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    Extech SL510 Sound Meter
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    £130.01 £108.34
    • ‘A’ &‘C’ Frequency Weighting 
    • Backlit display
    • ±1dB high accuracy 
    216 Reward Points
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    SKU: SL510
  6. Martindale SP79 Class 2 Sound Level Meter - Kit
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    Martindale SP79 Class 2 Sound Level Meter
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    £130.80 £109.00
    • Measure sound levels from 32 to 130dB
    • Selectable A and C frequency weighting
    • In compliance with Class 2 regulations - BS EN 61672-1
    218 Reward Points
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    SKU: MARSP79
  7. Amprobe Sm 10 Sound Meter - Kit
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    Beha-Amprobe SM-10 Type 2 Sound Meter
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    £134.40 £112.00
    • 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
    224 Reward Points
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    SKU: 3052366
  8. amprobe ut 300 ultrasonic transmitter
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    Beha-Amprobe UT-300 Ultrasonic Transmitter
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    £151.68 £126.40
    252 Reward Points
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    SKU: 2734446
  9. Extech 407732 Low High Range Sound Level Meter  Kit
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    Extech 407732 Type 2 Low/High Range Sound Level Meter
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    £159.32 £132.77
    • High accuracy meets ANSI and IEC 651 Type 2 standards
    • High and Low measuring ranges: 35 to 100dB (low) and 65 to 130dB (high)
    • Data Hold and Max Hold functions
    264 Reward Points
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    SKU: 407732
  10. Extech 407760 USB Sound Level Datalogger - Kit
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    Extech 407760 Type 2 USB Sound Level Datalogger
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    £187.45 £156.21
    • Cost-effective solution for logging sound levels over a period of time
    • Configure and download using USB connection to PC
    • Fully configurable measurement rate - choose 50ms, 500ms, 1s, 2s, 5s, 10s or every minute
    312 Reward Points
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    SKU: 407760
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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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