Model 407766 Audio Calibrator from the reputable Extech brand is an advanced and reliable device to ensure the accuracy of audio measurements in industrial and laboratory environments.
This tool provides two standard sound pressure levels of 94 dB and 114 dB, enabling precise calibration of microphones, sound level meters, and noise measurement equipment.
Its ergonomic design and stable performance make it an ideal choice for safety technicians, sound control engineers, and laboratory professionals.
One of the standout features of this model is the level position selection mechanism that allows users to easily switch between the 94 dB and 114 dB frequencies.
This flexibility is essential for conforming to various calibration standards and diverse measurement needs. The rugged structure and high-quality internal components ensure long-lasting durability and repeatable accuracy.
Key Features of the Extech Model 407766 Audio Calibrator
- Produces two standard sound pressure levels of 94 dB and 114 dB
- Easy sound level selection through positioning mechanism
- High accuracy and frequency stability for reliable calibration
- Suitable for calibrating industrial microphones and sound level meters
- Compact and portable design for on-site use
- Compliant with international sound measurement standards
Technical Specifications
| Feature | Value |
| Model | 407766 |
| Brand | Extech |
| Sound Pressure Level 1 | 94 dB |
| Sound Pressure Level 2 | 114 dB |
| Output Type | Audio (Tone) |
| Main Application | Calibration of sound measurement equipment |
| Adjustment Method | Sound level position selection |
Frequently Asked Questions
Is this calibrator suitable for calibrating condenser microphones?
Yes, the 407766 audio calibrator is designed for calibrating various industrial microphones, including condenser and dynamic microphones used for sound level measurement.
What is the difference between the 94 dB and 114 dB modes?
The 94 dB mode is typically used for standard and routine calibrations, while the 114 dB mode is used for testing equipment at higher sound pressure levels or for checking linearity of frequency response in stronger sound ranges.
Does the Extech 407766 94/114 dB audio calibrator require periodic calibration?
Yes, like all precise measurement instruments, it is recommended that the Extech 407766 audio calibrator is periodically checked and certified by recognized calibration centers to ensure the accuracy of its output.
Conclusion
The Extech model 407766 audio calibrator offers a combination of accuracy, reliability, and ease of use.
This device supports two vital sound pressure levels, meeting the calibration needs of a wide range of audio equipment. For organizations and companies that prioritize accurate noise and sound measurement, this calibrator is a necessary investment for maintaining quality and safety standards.
