TSI Quest 056-990 Calibrator Adapter for 1/2" Microphones

Calibrator adapter for use with TSI Quest AC-300 acoustic calibrator and 1/2" diameter microphones, including QE4130 Type 1, BK4936 Type 1, QE7052 Type 2, QE4150 Type 1, SD-200 series sound level meters, and Type 1 microphones used for certification of AC-300 per IEC61094.