Frequency: 1 000 Hz+-2%
For Type 1 and Type 2 soud level meters.
Frequency: 1 000 Hz+-2%
For Type 1 and Type 2 sound level meters. For ½" microphones
Frequency: 1 000 Hz+-2%
| AC CA106 | |
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| Type 2 calibrator with 94.0 dB for ½" and 1" | ||
| The CA106 Sound Pressure Level calibrator is a small sized, battery operated sound source for quick calibrations of sound level meters, dosimeters and equivalent equipment. | ||
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| GR 42AA | |
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| Type 1 pistophone with 114.0 dB, 250 Hz | ||
| The GRAS 42AA is a precision sound source for calibration of 1" or ½" microphones.The pistophone is battery operated and have a nominal value of 114.0 dB and a precision of 0.1dB from the nominal value. The pistophone complies with the requirements of IEC942 (1988) Class 1 and is PTB approved | ||
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| GR 42AB | |
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| Type 1 calibrator with 114.0 dB, 1kHz | ||
| The GRAS 42AB is a precision sound source for calibration of 1" or ½" microphones.The calibrator is battery operated and have a nominal value of 114.0 dB and a precision of 0.15 dB from the nominal value. The calibrator complies with the requirements of IEC942 (1988) Class 1. | ||
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| GR 42AC | |
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| Type 1 high pressure pistophone with 134.0 dB, 250 Hz | ||
| The GRAS 42AC is a high pressure precision pistophone for calibration of 1" or ½" microphones or hydrophones.The pistophone is battery operated and have a nominal value of 134.0 dB and a precision of 0.1dB from the nominal value. The pistophone complies with the requirements of IEC942 (1988) Class 1. | ||
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| GR 42AD | |
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| Type 1 pistophone with 114.0 dB, 251.2 Hz | ||
| The GRAS 42AD is a precision sound source for calibration of 1" or ½" microphones. The pistophone is battery operated and have a nominal value of 114.0 dB and a precision of 0.1dB from the nominal value. The pistophone complies with the requirements of IEC942 (1988) Class 1 and is PTB approved | ||
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| GR 42AP | |
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| Type 1 pistophone with 114.0 dB, 250 Hz | ||
| The G.R.A.S. Pistonphone Type 42AP is a battery-operated, precision sound source for accurate and reliable calibration of measurement microphones, sound level meters and other sound measuring equipment. | ||
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| RI NC 74 | |
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| Type 1, with 94dB, 1 000Hz | ||
| Sound Prssure level: 94 dB+-0.3dB Frequency: 1 000 Hz+-2% For Type 1 and Type 2 soud level meters. |
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| SV 30A | |
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| Calibrator, Type 1, with two levels 94dB or 114dB , 1 000Hz | ||
| Sound Pressure level: 94 dB+-0.3dB Frequency: 1 000 Hz+-2% For Type 1 and Type 2 sound level meters. For ½" microphones |
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| SV 31 | |
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| Type 1, with one level 94dB, 1 000Hz | ||
| Sound Pressure level: 94 dB Frequency: 1 000 Hz+-2%
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