Extech 407766 Sound Calibrator 94/114dB for 0.5" and 1" Microphones
[Product Information]
- Calibrates and verifies Sound Level Meter operation
- For use on Sound Level Meters with 0.5" or 1.0" microphones
- Total Harmonic Distortion (THD) <2% at 94dB
- Meets IEC standard 60942 1997-11
- 3 position switch (OFF/94dB/114dB)
