- Use to calibrate the " Sound Level meter " precisely.
- 1000 Hz frequency .
- 94 dB Sound Pressure Level
- Suitable for 0.5 & 1 inch microphone. Total harmonic distortion : 2 %.
- According IEC942, Class 2 Standard
- Power by 006P DC 9V battery, 2 PCs.
- Durable bench type housing case.
- Built-in over input protection.
Warranty:
- 2 years
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