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Amprobe SM-70
Sound Level Meter


  • Measuring level range from 35dB to 130dB
  • Frequency range 31.5Hz – 8kHz
  • A and C weightings for checking compliance with safety regulations as well as acoustic analysis
  • Slow (1 sec) and fast (125ms) response settings to check peak and average noise levels
  • Maximum hold feature to measure peak sound levels
  • Over and under range indicator
  • DC millivolt output for data analysis and recording (10mV/dB)
  • CE, designed to meet IEC651 and ANSI S1- 4 standards
  • Accessories included are carrying case, 9V battery, screwdriver and instruction manual

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Amprobe SM-70 Shown

Product Information
Manual 211 KB
PDF Help
Specifications (at 23°C±5°C, <75% R.H. non-condensing)
Visual Light Intensity
AC Output 0.65 Vrms at FS (fullscale), output impedance approx. 600Ω
DC Output 10mV/dB, output impedance approx. 100Ω
Accuracy ±2.0dB (under reference conditions)
Level Ranges Low: 35~100dB and Hi: 65 ~ 130 dB
Dynamic Range 65dB
Maximum Hold Hold Readings, with decay <1dB/ 3 Minutes
Calibration Electrical Calibration with the internal oscillator (1KHz Sine Wave)
Time Weighting FAST (125 mS) , SLOW (1 sec)
Frequency Range 31.5Hz ~ 8KHz
Measurement Level Range 35 ~ 130dB
Frequency Weighting A/C
Microphone 1/2 inch Electric Condenser microphone
Spectral Response CIE photopic – CIE standard illuminant A
General Specifications
Display LCD
Digital Display 4 Digits
Resolution: 0.1dB
Display period: 0.5 Sec
Battery 9V battery (x1)
Battery Life 50. Hours Approx (alkaline cell)
Operating Temperature 0 °C to 40 °C (32 °F to 104 °F); 10 to 90% R.H.
Storage Temperature -10 °C to 60 °C (14°F to 140°F), 0 to 75 % R.H
Dimensions (L x W x H) 240mm x 68mm x 25mm
Weight (incl. batteries) 210g (w/ battery)
Ordering Information
Model Description Buy Online List Price
SM70 Amprobe SM-70 Sound Meter Discontinued
Included Accessories
  • Carrying case
  • 9V battery
  • Screwdriver
  • Instruction Manual