The calibration frequency used by this acoustic calibrator is 1000 Hz with sinusoidal wave. Compared to other calibrators, this acoustic calibrator has three different reference levels: 94 dB, 104 dB and 114 dB. With a single keystroke you can change the reference level.
- Baseline: 94, 104, 114 dB - Frequency: A, B, C, D - Connection for 1/2" microphones" - Class II - Take care of IEC 60942: 2018, class II - Suitable for all 1/2" microphone sound level meters IEC 61094-1 or IEC 61094-4