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Castle GA216B SONUS Class 2 Sound Level Meter

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  • A practical, simple sound meter for fire alarm and noise at work checks
  • Measures sound pressure level from 35dB to 140dB over three ranges
  • Simultaneous measurement of average sound level and peak sound level
(Ex. VAT) £399.00 (Inc. VAT) £478.80

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  • Description

    Castle GA216B SONUS Class 2 Sound Level Meter

    The Castle GA216B SONUS Class 2 Sound Level Meter can measure acoustics between 35dB and 140dB over three different ranges: 35dB to 100dB; 55dB to 120dB; and 75dB to 140dB. The Class 2 microphone offers a reading resolution of 0.1dB and can capture sound between 20Hz and 8kHz in frequency. It is suitable for spot checks on alarms and initial checks for Noise at Work risk assessments.

    There are two options for frequency weighting (A or C) and response times (slow or fast) and the Castle GA216B is capable of simultaneously measuring both true RMS average volume (Lp) and peak volume (Cpeak). The meter can also measure maximum sound level (Lmax).

    The one-line digital display on the Castle GA216B shows numeric readings in addition to time elapsed, overload and battery life. The meter is incredibly simple to use thanks to its simple push-button operation and menu interface.

    The Castle GA216B weighs just 220g and can fit easily into a coat pocket. The ABS plastic casing is very tough and, overall, the meter is extremely practical.

    Castle part number: GA216B

    Key Features

    • Minimum reading: 35dB
    • Maximum reading: 140d
    • Linear range: 65dB
    • Measurement ranges: 35dB to 100dB; 55dB to 120dB; 75dB to 140dB
    • Class 2 accuracy
    • Small and portable
    • Lp, Lmax and Cpeak
    • A and C weighting
    • Fast and slow response times
  • Specification


    • IEC 61672-1:2002 (Integrating, Sound Exposure and Sound Level Meters)


    • Back-lit LCD panel (8x1 Characters)
    • Alpha-Numeric display for measured results


    • Measuring Range: 35-140
    • Linear operating range (IEC61672-1): 65dB
    • 3 Measurement Ranges (IEC61672-1): 35-100; 55-120 - Reference Range; 75-140


    • Typical ’A’ Weighting <32 dB(A) rms.
    • ‘C’ Weighting <38 dB(C) rms.


    • ‘A’ and ’C’ to IEC 61672-1:2002 and IEC 60651:1979+A1+A2


    • 20 Hz - 8 kHz (including microphone)
    • 1 Hz - 20 kHz (electrical characteristics)


    • Slow and Fast


    • Simultaneous rms. and Peak


    • Lp (Sound Pressure Level), Lmax (maximum Level), Cpeak (Max. Peak Level)
    • Other Displays: Elapsed time, Overload, Battery Life


    • Software controlled 91.0 to 120.0 dB (1kHz) in 0.1 dB steps


    • A to D Converter: 12-bit
    • Controller: 8MHz, micro-controller


    • Batteries: 1 x 6LR61 (size PP3), Life: >12 hours (alkaline batteries, continuous operation).


    • Dimensions: 60mm (width) x 35mm (depth excluding pocket clip) x 135mm (height without microphone) or 210mm (height with microphone)
    • Weight: 220g (including battery)
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    • Saturday Pre-Noon Delivery (on select products only) at £14.50*
    • Sunday Pre-Noon Delivery (on select products only) at £14.50*

    *UK mainland only

    NOTE! For next working day or Saturday/Sunday delivery options the order MUST be placed no later than 3pm on the working day before delivery is required. After 3pm, please arrange with our staff before selecting a priority delivery service. Priority services are available to UK mainland residents only (this might exclude certain areas in the north of Scotland).

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