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.
Specifications
| General | |
|---|---|
| Frequency | 1000Hz |
| Frequency Basic Accuracy | ±5% |
| Sound Range [dB] | 94dB/114dB |
| Sound Range [dB] Basic Accuracy | ±0.5dB (94dB); ±1dB (114dB) |
| Total Harmonic Distortion [THD] | <2% |
| Additional Details | |
|---|---|
| Certifications | 407766-NIST_S: CE, NIST 407766_S: CE |
| Dimensions | 2.2" diameter × 5.6" long (50 × 127mm) |
| Power | 2 × 9V batteries |
| Warranty | 2 years |
| Weight | 0.75 lbs. (340g) |
Resources & Support
User Manual
Extech 407744 407766 User Manual GB
Datasheet
Extech 407744 407766 Datasheet
User Manual
Extech 407744 407766 User Manual
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