| PERFORMANCE  | 
ENGLISH | 
SI | 
| Nominal Microphone Diameter  | 
1/4"  | 
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| Frequency Response Characteristic(at 0° incidence)  | 
Free-Field  | 
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| Frequency Response(± 2 dB)  | 
20 to 10,000 Hz  | 
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| Frequency Response(± 5 dB)  | 
20 to 20,000 Hz  | 
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| Phase Match(100 Hz to 5 kHz)  | 
± 5 °  | 
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| Sensitivity(@ 250 Hz)  | 
45 mV/Pa  | 
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| Sensitivity(± 3 dB)(@ 250 Hz)  | 
-26.9 dB re 1 V/Pa  | 
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| Inherent Noise(1/3 Octave @ 250Hz)  | 
<15 dB  | 
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| Inherent Noise(A Weighted)  | 
<30 dB  | 
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| Dynamic Range(3% Distortion Limit)  | 
>122 dB  | 
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| TEDS Compliant  | 
Yes  | 
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| ENVIRONMENTAL  | 
 | 
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| Temperature Range(Operating)  | 
+14 to +122 °F  | 
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| Temperature Effect on Output(-10 to +50 °C)  | 
<0.7 dB  | 
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| ELECTRICAL  | 
 | 
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| Excitation Voltage  | 
18 to 30 VDC  | 
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| Constant Current Excitation  | 
2 to 20 mA  | 
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| Output Bias Voltage  | 
5.5 to 14 VDC  | 
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| Output Impedance  | 
<150 ohm  | 
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| PHYSICAL  | 
 | 
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| Housing Material  | 
Stainless Steel  | 
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| Electrical Connector(Output)  | 
BNC Jack  | 
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| Size (Diameter x Length)(overall)  | 
0.5 in x 2.61 in  | 
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| Size (Diameter x Length)(head)  | 
0.28 in x 1.10 in  | 
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| Weight  | 
0.66 oz  | 
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| SUPPLIED ACCESSORIES:  | 
| Model ACS-21 Calibration of Array Microphone (1) | 
| OPTIONAL VERSIONS | 
| T- TEDS Capable of Digital Memory and Communication Compliant with IEEE P1451.4 | 
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