SC-1 calibrator

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. 


  • 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)

most common option / stock item in bold
*prices ex. VAT, shipping & handling and local import taxes

230110SC-1 sound calibrator, 94dBspl, 110dBspl€‎ 214,39
230111SC-1 + CA-1/2″ + CA-1/4″ sound calibrator, 94dBspl, 110dBspl€‎ 249,48
230112SC-1 + CA-1/2″ + CA-1/4″ + case sound calibrator, 94dBspl, 110dBspl€‎ 266,49
230210CA 1⁄4 calibration adapter€‎ 20,77
230220CA 1⁄2 calibration adapter€‎ 20,77
230230CA 8 calibration adapter€‎ 20,77
230290CA cust custom size calibration adapter, specify size€‎ 24,88
230300CA-1/4/2 1/4″ to 1/2″ insertion adapter€‎ 20,35

iSEMcon of Viernheim, Germany, develops and manufactures high end measuring microphones, calibrators, amplifiers and accessories.

The microphones, calibrators and accessories are of the highest quality – yet very affordable. Many sound engineers do swear by them.

You can find all iSEMcon products in the submenu.

Check the dealer network page for ordering.

pro audio measurement software