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Extech Instruments - A FLIR Company
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<< Extech Sound Meters
<< Extech Calibrators

Extech 407744
Sound Level Calibrator with 94 dB Output
  • Battery test position with battery status LED indicates if battery is good
  • Calibrates and verifies Sound Level Meter operation
  • For use on Sound Level Meters with 0.5" or 1.0" microphones
  • Durable die-cast, aluminum housing
  • 1 kHz sine wave at 94 dB and 114 dB (model 407766) is generated to an accuracy of 5% (frequency) and ±0.8 dB
  • Total Harmonic Distortion (THD) <2 % at 94 dB
Click here for larger image - Extech 407744 Sound Level Calibrator Click for larger image
Extech 407744 Shown
Product Information
Datasheet 301 KB
Manual 232 KB
PDF Help
 

Models 407744 407766
Frequency 1000 Hz
Sound Pressure Level 94 dB 94dB or 114dB
Distortion <2% Total Harmonic Distortion (THD)
Operating Temperature 32 to 122°F (0 to 50°C)
Power Supply Two Heavy duty, alkaline 9V Battery
Power Consumption Approx. 10mA DC
Battery Test Position Yes No
LED Power Indicator No Yes
3 position switch
(Off/94dB/114dB)		 No Yes
 
Ordering Information
Model Description Buy Online Price
407744 Extech 407744 94dB Sound Level Calibrator  Buy Now$309.99 
407744NIST Extech 407744-NIST Sound Level Calibrator  Buy Now$424.99 
Additional Models Available
407766Extech 407766 94/114dB Sound Level Calibrator  Buy Now$399.99 
407766NISTExtech 407766-NIST Calibrator Sound with NIST Calibration Certificate  Buy Now$514.99 
Included Accessories
 
  • (1) Carrying case
  • (1) Screwdriver
  • (2) 9V batteries
 Included


*NOTE: Items ordered with optional NIST calibration will require
approximately 10 days to complete the certification.

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$40.00 Minimum on Total Order