SC-1 Sound Calibrator with 1/2" and 1/4" Adaptors

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. 1/2" and 1/4" adaptors are included.