Top positieve recensie voor Voltmeter op Banggood Netherlands|Shoppen Nederlands

Geekcreit® 3 in 1 AC 60-500V 100A Voltmeter Ammeter HZ Hertz Frequency Meter 22mm Digitale Stroom Spanning Ampère Signaallamp LED-lamp Indicator met CT

61% OFF Geekcreit® 3 in 1 AC 60-500V 100A Voltmeter Ammeter HZ Hertz Frequency Meter 22mm Digitale Stroom Spanning Ampère Signaallamp LED-lamp Indicator met CT US$3.11 US$7.99 View It

Algeheel:

Arede 16/05/2020

Produto muito útil e interessante. Ideal para monitorizar a rede elétrica numa bancada de trabalho. Excelente preço. Eu escolhi o azul mas as restantes cores também parecem bem interessantes. Dos testes que fiz, concluí que a precisão da indicação da tensão da rede e da frequência é excelente. Quanto à indicação da corrente, já não é tão precisa: verifiquei que existe uma diferença, para mais, de cerca de 300mA. Fiz várias experiências com o tipo de fio e com o número de voltas do fio em que queremos medir a corrente. Só é necessária uma volta (fio multifilar ou rígido). Mais voltas aumenta o erro da indicação. Não sei se o circuito tem algum tipo de calibração (é pena que estes produtos não venham acompanhados de algumas instruções). Ainda assim, estou muito satisfeito. Recomendo.

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BG513421110 Haben Sie probiert ob der Fehler, immer bei 300mA bleibt, oder wird er bei höheren Strom auch größer?
Beantwoorden 06/04/2021

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