Extech 407744: 94dB Sound Calibrator

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Extech 407744: 94dB Sound Calibrator1kHz Professional Calibrator for 0.5" or 1.0" Microphones

This 1kHz, 94dB professional sound calibrator for 0.5" or 1.0" microphones calibrates and verifies sound level meter operation. Battery test position with battery status LED indicates if battery is good. Durable die-cast aluminum housing generates a 1kHz sine wave at 94dB to an accuracy of 5% (frequency) and ±0.5dB (94dB). Meets IEC standard 60942 1997-11. Complete with two 9V batteries, carrying case, and screwdriver.

• Calibrates and verifies Sound Level Meter operation
• Battery test position with battery status LED indicates if battery is good
• For use on Sound Level Meters with 0.5" or 1.0" microphones
• Durable die-cast, aluminum housing
• 1kHz sine wave at 94dB is generated to an accuracy of 5% (frequency) and ±0.5dB
  

Specifications

Range

Accuracy

Frequency1000 Hz±5%
Sound Pressure Level94dB±0.5dB
Distortion<2% Total Harmonic Distortion (THD)
Operating Temperature32 to 122°F (0 to 50°C)
Power SupplyTwo Heavy duty, alkaline 9V Battery
Power consumptionApprox. 10mA DC
Dimensions2.2" diameter x 5.6" long (50 x 127mm)
Weight0.75 lbs. (340g)