• IEC 60942:2003 Class1/ANSI S1.40-1984.
  • Output sound level : at 94dB and 114dB.
  • Frequency : 1KHZ ±1%, Class1, A
  • Accuracy : 94±0.3dB 114±0.5dB Specifications
  • Sound pressure levels : at 94dB and 114dB.
  • For 1/2″ condenser microphone calibration.
  • Low battery indication.
  • Harmonic waves distortion ±3%.
  • Output feedback detection.
  • Power: 9V battery 006P or IEC6F22 or NEDA 1604
  • Operation environments : 23.0oC ±3oC <85%RH ,850mbar~1050mbar, ≦2000M

Sound Calibrator ST-120 Class 1

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