Extech 407744
94dB Sound Calibrator
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.
规格
| General | |
|---|---|
| Frequency | 1000Hz |
| Frequency Basic Accuracy | ±5% |
| Sound Range (dB) | 94dB |
| Sound Range (dB) Basic Accuracy | ±0.5dB |
| Total Harmonic Distortion (THD) | <2% |
| Additional Details | |
|---|---|
| Certifications | CE |
| Dimensions | 2.2 × 5.6" (50 × 127mm) |
| Power | 2 × 9V batteries |
| Warranty | 2 years |
| Weight | 0.75 lbs. (340g) |
Export Restrictions
The information contained in this page pertains to products that may be subject to the International Traffic in Arms Regulations (ITAR) (22 C.F.R. Sections 120-130) or the Export Administration Regulations (EAR) (15 C.F.R. Sections 730-774) depending upon specifications for the final product; jurisdiction and classification will be provided upon request.
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