iSEMcon SC-1 Microphone Calibrator (Boxed)

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.  Specifications: 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 C