Manual or Auto Range Sound Level Meter

Model No. Product Name Price Qty
AET-933 Manual or Auto Range Sound Level Meter
ACAL-SL Sound Meter Calibration Service + Certificate
SL-WM1 Wind Muffler
ALR-61 PP3 Alkaline Battery 9V

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The AET-933 is a lightweight and user friendly sound level indicator offering 4 measurements ranges (3 manually selectable, 1 auto range). It offers selectable ‘A’ or ‘C’ frequency weightings and a choice of either Fast or Slow time weightings. It is designed to match the accuracies required of IEC 61672:2013 at ±1.4dB.

    • Measurement Ranges
      • 30 to 80dB
      • 50 to 100dB
      • 80 to 130dB
      • 30 to 130dB (Auto range)
    • Over/Under range indicator
    • 0.1dB Resolution
    • Selectable ‘A’ or ‘C’ frequency weightings
    • Selectable Fast (125ms) or Slow (1s) time weightings
    • Precision ½ inch electret condenser microphone
    • Lmax (LAFmax, LASmax, LCFmax, LCSmax)
    • Lmin (LAFmin, LASmin, LCFmin, LCSmin)

    • 35mm LCD display with function indicators
    • LCD display backlight
    • Data hold
    • Max hold – displays highest measured value
    • Min hold – displays lowest measured value
    • Low battery indicator
    • Auto power off after 15 minutes of no activity
    • Supplied with soft carry case, wind muffler, battery and 2 year warranty

Product Video

Product Manual

Technical Specification
Measurement Range 30 to 80dB, 50 to 100dB, 80 to 130dB, 30 to 130dB (auto range)
Applicable Standards N/A
Measurement Parameters Lp, Lmax, Lmin
Resolution 0.1dB
Accuracy ±1.4dB (94dB @ 1KHz)
Frequency Range 31.5Hz to 8 KHz
Frequency Weightings 'A' or 'C'
Time Weightings Fast or Slow
Power 1 x 9V PP3 alkaline battery (LR-61)
Dimensions 158 x 62 x 32mm
Weight 178g
Calibration Options
Traceable Calibration +£75.00 (issued at 2 points) 94dB & 104dB at a frequency of 1Khz