Frequency: 1000/0.01% Hz Allows Calibration with A,B,C or D weighting networks or linear
Weight: 250 gm
Sound Pressure Level: 94dB and 114 dB
Standards: GB/T15173,IEC942
Accuracy: 0.5 dB
Applications: Calibration of 1* and 1/2* microphones
Temperature Coefficient: 0 to 0.01 dB/Degree Celsius
Altitude Effects: Approximately 0.1dB decrease for each 2000 feet increase in altitude from sea level to 12,000 feet elevation,or comparable atmospheric pressure change