ST-11D | Class 1 Sound Level Meter


  •  IEC 61672-1:2013 Class 1 Standard
  • 27-140 dB measurement range
  • ±0.7 dB high accuracy
  • 0.1 dB resolution
  • 10-20k Hz frequency range
  • A, C, Z frequency weightings
  • Fast, Slow, Impulse, Peak time weightings
  • RS232 Data Output / USB computer interface
  • Data Logging & Record functions
  • Measurement Report Printing
    Optional: Portable High Speed Printer Kit
    Optional: Class 1 Sound Level Calibrator (94/114 dB)


ST-11D is your ideal sound level meter for real-time noise measuring as well as long-term noise exposure documenting over time. Condenser microphone for high accuracy & long-term stability. Built-in memory for sound recording and measurement results (including Start/Stop Time, %Dose, TWA). Low power consumption and USB port charging allow long-hour usage. 

Product Specification


Detailed Product features and Specification


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