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AR-814 | AR-824 | |
| Measuring Range | 30～130dBA | 30～130dBA |
| 测量范围 | 35～130dBC | 35～130dBC |
| Accuracy | ±1.5dB | ±1.5dB |
| 测量精确度 | ||
| Frequency Range | 31.5HZ-8.5KHZ | 31.5HZ-8.5KHZ |
| 频率响应 | ||
| Linearity Range | 50dB | 50dB |
| 动态范围 | ||
| AC/DC Output | √ | √ |
| AC/DC 信号输出 | ||
| Auto Power Shut Off | √ | √ |
| 自动关机功能 | ||
| Low Battery Indication | √ | √ |
| 低电显示功能 | ||
| Over Range Indication | √ | √ |
| 过载提示 | ||
| Digit & Resolution | 5Digits & 0.1dB | 5Digits & 0.1dB |
| 数位及分辨率 | ||
| Time Weighting Selection | Fast/Slow | Fast/Slow |
| 动态特性选择 | ||
| Microphone1/2 Inch Electret Condenser Microphone麦克风1/2 英寸电容式麦克风 | ||
| Frequency Weighting | A & C | A & C |
| 频率加权特性 | ||
| Sound Measuring Level Selection | √ | √ |
| 测量档位选择 | ||
| Max Hold Function | √ | √ |
| 最大值锁定 | ||
| Sampling Frequency | 2 times/sec | 2 times/sec |
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