| 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**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 | Microphone | 1/2Inch 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 | √ | √ | *大值锁定 | Sampling Frequency | 2times/sec | 2times/sec | 取样频率 |
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| | | GENERAL CHARACTERISTICS | 一般特征 | Power | 9V(Alkaline or DC Adapter) | 6V(4*AA Alkaline or DC Adapter) | 供电 | 9V碱性电池或者电源适配器 | 4节1.5VAA碱性电池或6V电源适配器 | LCDsize | 30*50mm | 30*50mm | LCD尺寸 | Product Color | Ivory | Ivory | 产品颜色 | 白 | 白 | Product Net Weight | 178g | 300g(include battery) | 产品净重 | Product Size | 207*70*29mm | 265*70*35mm | 产品尺寸 |
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PACKING INFORMATION | 包装 | 包装方式1(中国) | 彩盒包装 | 彩盒包装 | 标准外箱容量 | 20 | 20 | 标准外箱尺寸 | 55.0*45.0*26.5cm | 57.0*51.7*23.8cm | 标准外箱毛重 | 13.96kg | 10.5kg | 包装方式2(Other Countries) | Blister | Blister | Standard Quantity Per Carton | 20 | 20 | Standard Carton Size | 41.0*37.5*33.2cm | 41.0*37.5*33.2cm | Standard Carton Gross Weight | 5.76kg | 6.2kg |
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