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Low Cost Sound Meter

NM102 sound meter
NM102 Sound Meter

This low cost sound meter has been designed for quick noise surveys and sound level checks. Despite its excellent range of features, it is very easy to use and the large backlit display helps when measuring in poor light conditions.

  • Large, clear display with back-light
  • 30 to 130 dB(A) Auto Ranging
  • A and C frequency weighting
  • Fast and Slow time weighting
  • Maximum and Minimum sound level readings
  • Hold button holds the currently displayed level
  • Includes Wind Shield, Carrying Case and Battery

Due to its auto-ranging feature and simple push-button operation, this sound meter is extremely easy to use. Just switch it on and it is measuring with the most common settings: "A" frequency weighting and "Fast" time response. At the push of a button you can change it to display the "C" weighted sound level or change to "Slow" time response. The large display with back light make this meter ideal for measuring noise levels where the natural light is poor.

sound meter with carrying case and wind shield
Display 4 Digit LCD with back light, update rate 0.5s
Indicators Low battery, freq. & time weighting, min/max
Resolution / Accuracy 0.1dB / ±1.5 dB (ref 94 dB @ 1 kHz)
Frequency Range 31.5 Hz to 8 kHz
Level Range 30 to 130 dB(A), 35 to 130 dB(C)
Frequency Weighting A and C
Microphone 1/2" electret condenser
Time Weighting Fast (125ms) and Slow (1s)
Dynamic Range 50 dB
Battery One 9V battery (supplied)
Battery Life About 50 hours (alkaline battery)
Temp. & Humidity 5°C to 40°C, below 80% RH
Dimensions 8" x 2.1" x 1.5", 6 ounce (inc. battery)
  200 x 55 x 38, 170g (including battery)


Sound Level Meter and Calibrator

sound level meter with calibratorIf you also need a Sound Level Calibrator then the NM102 Sound Level Meter is available in a Noise Measurement Kit, order code NM102-K, which includes the calibrator, wind shield, hard carrying case and soft carrying pouch.

Please visit the Sound Level Meter with Calibrator page for more information.


Low Cost Sound Level Meter
In stock
Sound Level Meter with Calibrator
In stock


Used NM102
Second Hand Sound Level Meter
Used NM102-K
Sound Level Meter and Calibrator
More pricing information

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Prices and Ordering

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Price (USD)
Sound Level Meter with Windshield, Case and Battery
In stock
Sound Level Meter with Calibrator, Windshield, Case and Battery
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