Mini Digital Sound Level Meter

Model No. Product Name Price Qty
AMT-901A Mini Digital Sound Level Meter
ACAL-SL Sound Meter Calibration Service + Certificate
ATP-1220R Instrument Tripod
SL-WM1 Wind Muffler
ALR-61 PP3 Alkaline Battery 9V

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The AMT-901A is a compact and easy to use sound level indicator that offers virtually instant readings. It is ideal for quick sound level checks and offers a fixed ‘A’ Frequency Weighting and Fast time weighting (125milliseconds). With an accuracy of ±1.4dB it is designed to match the accuracies expected of IEC 61672:2013.

  • Single Measurement Range: 30 to 130dB
  • 0.1dB Resolution
  • ‘A’ Frequency Weighting
  • Fast Time Weighting (125ms)
  • Precision ½ inch electret condenser microphone
  • Lmax (LAFmax)
  • Lmin (LAFMin)

  • 30mm LCD display with function indicators
  • Display updates every 0.5 seconds
  • Backlight for dark environments
  • 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
  • Can be tripod mounted
  • Supplied with wind muffler, battery, and 2 year warranty

Product Video

Product Manual

Technical Specification
Measurement Range 30 to 130dB
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'
Time Weightings Fast
Power 1 x 9V PP3 alkaline battery (LR-61)
Dimensions 144 x 55 x 38mm
Weight 90g
Calibration Options
Traceable Calibration +£75.00 (issued at 2 points) 94dB & 104dB at a frequency of 1Khz