407722 Sound Level Calibrator

Features:
• Calibrates and verifies Sound Level Meter operation
• For use on Sound Level Meters with 0.5" or 1.0" microphones
• Total Harmonic Distortion (THD) <2% at 94dB
• 1kHz sine wave at 94dB/114dB is generated to an
accuracy of 4% (frequency)
• 3 position switch (OFF/94dB/114dB)
• Meets IEC 9042 Class 2
• Complete with 9V battery

Specifications 
Frequency 1000Hz
Sound Pressure Level 94dB/114dB
Distortion <2%TotalHarmonicDistortion(THD)
Operating Temperature 32to122°F(0to50°C)
Power Supply Onealkaline9Vbattery
Power consumption Approx.10mADC
Dimensions 4.7x2x1.7”(120x51x43mm)
Weight 4.5oz(130g)