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The SP79 is a Class 2 sound level meter for on-site measurements in accordance with Noise at Work legislation in industrial and office environments. Featuring A and C frequency weighting and fast and slow time weighting, the compact design can be handheld or mounted on a tripod for longer-term monitoring of Min / Max values. Detailed recording and analysis can be made using the AC and DC outputs.


The SP79 complies with BS EN 61672-1:2003 and is supplied with a detachable windshield and hard carry case. The large high contrast display includes both digital reading and analogue bar graph.

An optional Class 2 sound level calibrator is available to verify accuracy before and after readings in accordance with international standards. The SPC70 is simple to use and provides a 1kHz reference at 94dB and 114dB.



  • For industrial and office environments
  • Suitable for Noise at Work measurements
  • Complies with BS EN 61672-1:2003
  • A & C frequency weighting
  • Fast & slow time weighting
  • Optional SPC70 Class 2 Calibrator

Martindale SP79 Class 2 Sound Level Meter

£196.80 Regular Price
£176.80Sale Price
VAT Included
    • Measurement range    32-130dB
    • Measurement rate    2/second
    • Display    4 digit LCD
    • Resolution    0.1dB
    • Accuracy    ± 1.4dB
    • Frequency weighting    A and C
    • Frequency range    20Hz-8000Hz
    • Detector    True-RMS with independent frequency weightings
    • Dynamic range    60dB
    • Time weighting    SLOW & FAST
    • Microphone    ½” electret condenser
    • Supply    6LR61/MN1604/PP3
    • Dimensions    285 x 55 x 25 mm
    • Includes    windscreen, battery & case
    • Complies with    BS EN 61672-1
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