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デジタルDC 0-100V 0-10A 250Wテスター DC7-12V液晶デジタル表示 電圧 電流 電力計 ボルトメーター アンペアメーター
US$12.99
US$14.99
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radiospmr
same issue common with all instruments trying to measure voltage, current and power measurements. you can offset this by trying to measure voltage and current at the output port sharing the same ground location. location of probe points can becrucial in determining accuracy. therefore lab grade instrumentation for precise measurement is expensive and out of reach of most.
so you must accept slight inaccuracies in affordable instruments.
radiospmr voltage varies all along the cable, it is influenced by the location of probe points along the cable. try using ISOLATED power supply to power this device, this minor inaccuracy and offset problem should be solved.
返信 17/11/2019
bobbylong1 so basically selling stuff that doesnt even do what it says on the tin! banggood all over that is!
返信 14/06/2020| 会社概要 | お問い合わせ | お支払い&配送情報 | パートナーシッププログラム |
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United Kingdom , USD
