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| Brand Name: | Bestone |
| Model Number: | ND9A,ND9B |
| MOQ: | 2 |
| Price: | US$147 |
| Delivery Time: | 3-5 working days |
| Payment Terms: | T/T,Western Union |
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Model |
ND9A |
ND9B |
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Standards |
GB/T15173, IEC942 |
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Sound Pressure |
94 dB and 114 dB |
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Accuracy |
0.5 dB |
0.3 dB |
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Frequency |
1000±0.01% Hz allows calibration with A,B,C or D weighting networks or linear. |
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Applications |
Calibration of 1" and 1/2" microphones |
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Temperature Coefficient |
0 to 0.01 dB/°C |
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Altitude Effects |
Approximately 0.1dB decrease for each 2000 feet increase in altitude from sea level to 12,000 feet elevation, or comparable atmospheric pressure change (approximately every 50mm of Hg decrease). |
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Temperature Range |
-10 to +50°C(operating) |
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Power Supply |
1x9V 6F22 Battery |
4x1.5V AAA (UM-4) |
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Dimensions |
142x47x47mm |
137x51x51mm |
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Weight |
275g |
200g |
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Accessories:
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Standard Accessories |
Main Unit |
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Carrying Case(B07) |
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Operation Manual |
