Digital Sound Level Calibrator ND9B
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.
Sound Pressure Level:94dB/114dB
Frequency:1000±0.01%Hz allows calibration with A,B,C or D weighting networks or linear.
Extremely low influence of static pressure.
Conforms to IEC 942 class 1
Calibration Of Microphones:1", 1/2" microphones
Temperature Range:-10 to +50℃ operating
Storage (with batteries removed) -40 to +65℃
Temperature Coefficient: 0 to 0.01 dB/℃
Altitude Effects: Approximately 0.1 dB decrease for each 2000 feet increase in altitude from sea level to 12,000 feet elevation,or comparable atmospheric pressure change(approximately every 50 mm of Hg decrease).
Power Supply:2x1.5AAA(UM-4) Battery
Dimensions:51× 51 × 137 mm
Weight:about 200g (Not Including Batteries)
1. Main Unit
2. Carrying Case
3. Operation Manual
For more details,please feel free to contact us.Thank you!