Model Suffix: A / B
Output Sound Level: 94 dB, 114 dB
Accuracy for Model A: 0.5 dB
Accuracy for Model B: 0.3 dB
Output Frequency: 1000 Hz
Applications: Calibration of φ12.7 mm (1/2 inch) and φ23.77 mm (1 inch) microphones and acoustic measurement instruments
Power Supply: 1 × 6F22 9V battery
Dimensions: 142 × 47 × 47 mm
Weight: 275 g (without battery)
Altitude Effect: Sound pressure decreases by 0.1 dB for every 60 meters of elevation above sea level
