Sound Level Meters

Meters for Noise Assessments in the WorkplacedBAir Sound Meter by Castle

Castle Group Ltd are a long standing leading manfacturer of noise measuring equipment, particularly Sound Level Meters for industrial noise monitoring. Our equipment is ideal for performing noise at work assessments to The Control of Noise at Work Regulations 2005.

With a history spanning back to 1971, our ever unique approach to problem solving helps us lead market trends. Most recently our dBAir Sound Level Meter has an all new WiFi Data Transfer as a standard feature, removing the problems and limitations of using a cable.

Meters to carry out Industrial Noise Assessments

To ensure employee's hearing is protected from excessive noise in the workplace. Excessive noise is noise that has the potential to damage their hearing. HSE states that at a minimum a Class 2 Sound Level Meter to BS EN ISO 61672-1:2003 or BS EN 60804:2001 should be used. Meters that do not meet these standards should not be used for Noise at Work measurements. Class 1 Sound Meters are a popular choice with safety professionals, as they give more accurate readings and are capable of other applications that require a higher grade.

If you're new to Noise at Work, why not read our Ultimate Guide to Noise at Work to help you get started.

Notable Levels for Noise at Work

  • Lower Action Level - LEP,d 80 dB(A) / Peak 135 dB(C)
    Hearing protection must be provided where levels are at or above 85 dB
  • Upper Action Level - LEP,d 85 dB(A) / Peak 137 dB(C)
    Employers must provide training and carry out risk assessments to employee's health where levels are at or above 80 dB
  • Exposure Limit - LEP,d 87 dB(A) / Peak 140 dB(C)
    Employees must not be exposed to levels over 87 dB, taking into account any reductions from hearing protection.

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  • Price from
    Excl Tax: £2,988.00
    Incl Tax: £3,585.60

    This Noise Assessment System can be configured to your exact requirements, making it the ideal product for Noise Consultants who perform a wide variety of noise assessments for industrial and environmental noise. This noise assessment system is provided with a Class 1 Acoustic Calibrator, Attache Carry Case, Sound Meter rubber case and Cloud Software.

    Brand Castle Group
    Application Environmental Noise, Long Term Noise Monitoring, Noise at Work
    Class Class 1
    Weightings A, C, Z
    Measurement Parameters Leq, Lmin, Lmax, Peak, (Percentiles) Ln's, Dose, HSE Exposure Points, Lep’d (LEX), Le (SEL), Lday, Lnight, Lden, LAF, Hearing Protector Calculator
    Features 1/1 Octave Bands, 1/3 Octave Bands, Audio Events Recording, Hearing Protection Database, WiFi Data Transfer, Dose, Data Logging, Statistics
  • Price from
    Excl Tax: £1,589.00
    Incl Tax: £1,906.80

    This NK021 system includes a class 1 integrating sound level meter, class 1 acoustic calibrator, protective microphone windshield and is supplied in a hard wearing kit case. This is a great value and simple package for carrying out noise at work assessments, checking noise levels and performing personal noise exposure levels. 

    Brand Castle Group
    Application Environmental Noise, Noise at Work
    Features Data Logging
    Weightings A, C
    Measurement Parameters Leq, Lep’d (LEX)

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