噪音计AR824AR-814AR-824MeasuringRange30～130dBA30～130dBA测量范围35～130dBC35～130dBCAccuracy&plu***n;1.5dB&plu***n;1.5dB测量***度FrequencyRange31.5HZ-8.5KHZ31.5HZ-8.5KHZ频率响应LinearityRange50dB50dB动态范围AC/DCOutput√√AC/DC信号输出AutoPowerShutOff√√自动关机功能LowBatteryIndication√√低电显示功能OverRangeIndication√√过载提示Digit&Resolution5Digits&0.1dB5Digits&0.1dB数位及分辨率TimeWeightingSelectionFast/SlowFast/Slow动态特性选择Microphone1/2InchElectretCondenserMicrophone麦克风1/2英寸电容式麦克风FrequencyWeightingA&CA&C频率加权特性SoundMeasuringLevelSelection√√测量档位选择MaxHoldFunction√√***大值锁定SamplingFrequency2times/sec2times/sec取样频率GENERALCHARACTERISTICS一般特征Power9V(AlkalineorDCAdapter)6V(4*AAAlkalineorDCAdapter)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LCDsize30*50mm30*50mmLCD尺寸ProductColorIvoryIvory产品颜色***白***白ProductNetWeight178g300g(includebattery)产品净重ProductSize207*70*29mm265*70*35mm产品尺寸PACKINGINFORMATION包装包装方式1(中国)彩盒包装彩盒包装标准外箱容量2020标准外箱尺寸55.0*45.0*26.5cm57.0*51.7*23.8cm标准外箱毛重13.96kg10.5kg包装方式2(OtherCountries)BlisterBlisterStandardQuantityPerCarton2020StandardCartonSize41.0*37.5*33.2cm41.0*37.5*33.2cmStandardCartonGrossWeight5.76kg6.2kg)