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Extech 407744 94dB, 1kHz Sound Level Calibrator
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Extech 407744
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Features:
- 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
- Total Harmonic Distortion (THD) <2% at 94dB
- Complete with two 9V batteries, carrying case, and screwdriver
- 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
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Description
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94dB, 1kHz Professional Calibrator for 0.5" or 1.0" Microphones
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Models, Options, & Accessories
| Model |
Description |
List Price |
Sale Price |
| 407744 |
SOUND LEVEL CALIBRATOR |
| $299.99 |  |
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| 407744-NIST |
SOUND LEVEL CAL. W/NIST 407744 |
| $414.99 | |
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Specifications
| Specifications: |
Range |
Accuracy |
| Frequency |
1000 Hz |
±5% |
| Sound Pressure Level |
94 dB (407744); 94dB/114dB (407766) |
±0.5dB (94dB), ±1dB (114dB) |
| Distortion |
<2% Total Harmonic Distortion (THD) |
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| Operating Temperature |
32 to 122°F (0 to 50°C) |
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| Power Supply |
Two Heavy duty, alkaline 9V Battery |
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| Power consumption |
Approx. 10mA DC |
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| Dimensions |
2.2" diameter x 5.6" long (50 x 127mm) |
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| Weight |
0.75 lbs.(340g) |
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