AS-156B Professional Sound Level Meter Monitoring Indicator Noise meter 30~130dB
Product Description
The Sound Level Meter (AS-156B Accuracy : ±1dB ). Can memorize 30 groups of measurement results and measuring conditions. Permits choice “A” / “C” / “F” weighting and “Fast” / “Slow” response times. Offers 4 measurement parameters: Lp ( soundlevel). Leq (Equivalent Continuous A Sound Level). Lmax (Maximum Sound Level) and LN (Percent of all readings over alarm value set).
Product Feature
* DC output :1 0 m V / d B.
* Auto range selection and digital display with no guessing errors.
* Can memorize 30 groups of measurement results and measuring conditions.
* Permits choice “A”, “C” , “F” weighting and “Fast” / “Slow” response times.
* Offers 4 measurement parameters: Lp (sound level); Leq (Equivalent Continuous A Sound Level ); Lmax ( Maximum Sound
Level) and LN (Percent of all readings over alarm value set ).
* Use USB data output with connection PC.
* Provide Bluetooth data outputchoice.
Product Parameters
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Resolution
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0.1dB
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Accuracy
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AS-156B: ± 1dB
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Measurable Parameters
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Lp (sound level)
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Leq (Equivalent Continuous A Sound Level)
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Lmax (Maximum Sound Level)
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LN (Percent of all readings over alarm value set)
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Measuring Range
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Lp: 30~130dB
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Leq: 35~130dB
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LN: 0~100%
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Frequency Weighting
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“A” / “C” / “F” (Flat)
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Time Weighting
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“Fast” ( 125ms ) / “Slow” ( 1 second )
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Microphone
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1/2 inch electret condenser type
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Memory
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Store 30 group measurement conditions and data
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Built In Calibration Signal
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94dB at 1kHz (sinusoidal)
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Alarm Value Set
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30~130 dB
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Frequency Range
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AS-156B: 20~12,500 Hz
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Alarm Output
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LED and optional relay contact (NC)
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Size
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140x70x30 mm
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Power Supply
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4x1.5vAAA Um-4 Battery
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Weight
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130 g (Not including batteries)
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Standard Accessories
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Main Unit
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Windscreen
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Carrying Case
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Operation Manual
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Optional Accessories
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Sound Level Meter Calibrator
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USB data output
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RS-232 data output
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Bluetooth™ data output
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