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Dwyer Model SMC-1 Sound Calibrator

Detail Dwyer Model SMC-1 Sound Calibrator

Model SMC-1 Sound Calibrator

Set Standard Noise Levels at Either 94 or 114 dB

Model SMC-1 Sound Calibrator is ideal for setting standard noise levels at 94 dB and 114 dB. The SMC-1 has an output frequency of 1 kHz, ±4%. This unit functions best when environment conditions have a temperature of 68°F (20°C), relative humidity of 65%, and an atmospheric pressure of 29.9″ Hg (1013 mbar). The SMC-1 features a measuring accuracy of ±0.5 dB, a low battery indicator, and a 1/2″ microphone adapter. This calibrator has a compact design that allows the user to conveniently operate and store the product. At 10 oz (283 g) including the battery, the SMC-1 is also extremely lightweight. Each unit includes carrying case, battery, and instruction manual. This calibrator is ideal for calibrating sound meters such as the Dwyer Series SM-100.


  • Selectable Sound Output Level : 94 dB or 114 dB.
  • Output Frequency : 1 kHz ±4%.
  • Accuracy : ±0.5 dB.
  • Temperature Limits :
    Operating : 32 to 104°F (0 to 40°C)
    Storage: 14 to 140°F (-10 to 60°C).
  • Humidity Limits :
    Operating: 10 to 70% RH
    Storage: 10 to 90% RH.
  • Elevation Limit : Maximum 6562 ft (2000 m) above sea level.
  • Power Requirement : 9 V alkaline battery, included, user replaceable.
  • Battery Life : 20 hours with alkaline battery (approx).
  • Weight : 10 oz (283 g).
  • Standards : ANSI S1.40-1984 and IEC 942 1988 Class 2.

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