Extech 407766 94/114dB Sound Calibrator

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1kHz Professional Calibrator for 0.5” or 1.0” Microphones

This 1kHz 94/114dB professional sound calibrator is for 0.5 in. or 1 in. microphones. Calibrates and verifies sound level meter operation. Level position switch to select 94dB or 114dB with power on LED indicator light. Durable die-cast aluminum housing generates a 1kHz sine wave at 94dB/114dB to an accuracy of 5% (frequency) and ±0.5dB (94dB)/±1.0dB (114dB). Meets IEC standard 60942 1997-11. Comes complete with two 9V batteries, carrying case and screwdriver.

94/114dB Sound Calibrator
Model : 407766 & 407744

• 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
• Meets IEC standard 60942 1997-11
• Complete with two 9V batteries, carrying case, and screwdriver

Model 407766

• LED indicator lights up when power is on
• Level position to select 94dB or 114dB
• 1kHz sine wave at 94dB/114dB is generated to an accuracy of 5% (frequency) and ±0.8dB
• 3 position switch (OFF/94dB/114dB)

Model 407744

• Battery test position with battery status LED indicates if battery is good
• 1kHz sine wave at 94dB is generated to an accuracy of 5% (frequency) and ±0.8dB

Specification Extech 407766 94/114dB Sound Calibrator :