Application
For quick and easy calibration of sound level meters and sound measuring systems.
* Handy sound source for quick and easy calibration of sound level meters and sound measuring systems.
* The Calibrator employs solid state integrated circuitry that provides accurate and stable performance.
* Sensitivity calibration of microphones.
* Suitable for field and laboratory use.
Specifications
| Model | ND9A | ND9B |
| Standards | GB/ T1573, ANSI, 40 CLASS2, IEC942 | |
| Sound Pressure Level | 94 dB | 94 dB |
| 114 dB | 114dB | |
| Accuracy | 0.5dB | 0.3 dB |
| Frequency | 1000 Hz | |
| Calibration of Microphones | 1*, 1/2'' | |
| Power Supply | 1 x 9V 6F22 Battery | |
| Dimensions | 142 x 47 x 47mm | |
| Weight | 275g (Including Battery) | |
