| 型号 |
AR-814 |
AR-824 |
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| Measuring Range测量范围 |
30～130dBA35～130dBC |
30～130dBA 35～130dBC |
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| Accuracy 测量精确度 |
±1.5dB |
±1.5dB |
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| Frequency Range频率响应 |
31.5HZ-8.5KHZ |
31.5HZ-8.5KHZ |
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| Linearity R动态范围 ange |
50dB |
50dB |
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| AC/DC OutputAC/DC 信号输出 |
√ |
√ |
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| Auto Power Shut Off自动关机功能 |
√ |
√ |
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| Low Battery Indication低电显示功能 |
√ |
√ |
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| Over Range Indication过载提示 |
√ |
√ |
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| Digit & Resolution数位及分辨率 |
5Digits & 0.1dB |
5Digits & 0.1dB |
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| Time Weighting Selection动态特性选择 |
Fast/Slow |
Fast/Slow |
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| Microphone麦克风 |
1/2 Inch Electret Condenser Microphone 1/2 英寸电容式麦克风 |
1/2 Inch Electret Condenser Microphone 1/2 英寸电容式麦克风 |
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| Frequency Weighting频率加权特性 |
A & C |
A & C |
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| Sound Measuring Level Selection测量档位选择 |
√ |
√ |
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| Max Hold Function z大值锁定 |
√ |
√ |
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| Sampling Frequency取样频率 |
2 times/sec |
2 times/sec |
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