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iSEMcon SC-1 Microphone Calibrator (Boxed)

iSEMcon SC-1 Microphone Calibrator (Boxed)

Regular price $399.00
Regular price $413.00 Sale price $399.00
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The SC-1 sound calibrator is a single-frequency dual-amplitude, self contained field calibrator used to quickly and precisely verify the accuracy and the sensitivity of microphones.

The unit generates a 1kHz reference tone at 94 and 110 dB SPL. The SC-1 consists of an amplitude-switchable constant frequency oscillator, a transducer and a microphone coupler. The coupler accepts a large variety of microphones.

Rational offers this unit pre-packaged in a protective case with both the 1/2" and 1/4" adapters as well as with operating instructions and factory certified calibration chart. The calibrator uses a single 9 Volt battery (included).

NOTE:  The Rational RTA420 requires the 10mm calibrator adapter for use with the SC-1. 


  • Frequency: 1kHz +- 0.2%
  • SPL: 110dB - 94dB switchable
  • Accuracy: +- 0.5dB at 20 Grad Celsius and 1013 mbar
  • Ambient temperature range: 0 - 45 Grad Celsius
  • Temperature drift: < 0.02dB per Grad Celsius
  • Temperature drift frequency: < 0.05Hz per Grad Celsius
  • Storage temperature range: -25 - 55 Grad Celsius (without battery)
  • Humidity: 5 bis 95% relative
  • Power supply: 9V battery or accumulator
  • Housing: Aluminium, PVC
  • Dimensions: Diameter 40mm (1.5 in) / Length 132mm (5.2 in)
  • Weight (without battery): 164g (5.7 oz)

What's in the Box?

  • SC-1 Calibrator
  • 1/2" Calibrator Adapter
  • 1/4" Calibrator Adapter
  • 9v Battery
  • Protective Case