产品优点：6位半数字分辨率，每秒1350个读数和15ppm的基本直流精度 带频率/周期测试及2/4线电阻测试功能
3-1/2 to 6-1/2 digits resolution, extendable to 7-1/2 digits
Reading rates from 1 reading every 2 seconds to 1350 readings per second.
DC volts accuracy up to 5 ppm
Measures DC Volts and Current, Resistance, True RMS AC Volts and Current, Frequency and Period
Math functions include Null, Scale, Offset, RMS Filter, Single Pole Filter, Thermistor Linearization, dB, dBm, % Error, Pass/Fail Limit Testing, and Statistics
产品参数：6位半数字分辨率，每秒1350个读数和15ppm的基本直流精度
备注：带频率/周期测试及2/4线电阻测试功能
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