The SC-1 sound calibrator is a one frequency dual amplitude,self contained field calibrator that quickly and also precisely verifies the accuracy and the sensitivity of microphones. The unit generates a 1kHz reference tone at 94 and 110 dB SPL. The calibrator uses a single 9 Volt battery.

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.

Separate 1/2" , 1/4" and 8mm as well as custom size adapters are available.