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Using a weighted network (simulating human ear), Lock Min/Max Values, Ten minute automatic shutdown to prevent excessive power consumption.
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Reaction rate:FAST/SLOW
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Measuring range :30 ~ 130dB
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Accuracy: ±1.5dB
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Frequency response: 20Hz-8KHz
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Data hold: Maximum and Minimum hold
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Microphone: 1/2 inch Electret Condenser Microphone
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Material: ABS
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Sampling rate:2 times/second
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Digital display: 4 digital
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Working temperature :0℃~+40℃
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Working humidity: 10-80% RH
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Power supply: 3*AAA battery(Included)
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Weight: about 100g