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Geekcreit® DC 100V 10A 0,28 Polegadas Mini Voltímetro Digital Amperímetro 4 Dígitos 5 Fios Medidor de Tensão de Corrente com Display LED Duplo

42% OFF Geekcreit® DC 100V 10A 0,28 Polegadas Mini Voltímetro Digital Amperímetro 4 Dígitos 5 Fios Medidor de Tensão de Corrente com Display LED Duplo US$6.99 US$11.99 View It

Geral:

samtree 07/06/2020

I bought these two for my stock, as it is an excellent measuring instrument. For details see my previous review on 2020-04-05. Small tip of advice: the two current cables (red and black) are not as thick as they look (it is the insulation that is thick, not the cable core). I measured them, and the resistance of each one is about 10 mOhms. For a 5A current, the thermal loss on each cable is about 0.25 Watts, but at 10A, it goes as high as 1 Watt. So, if you intend to use this instrument for measuring currents higher than 5A and for long periods of time, either cut these cables as short as possible, or replace them with a thicker cable (1.5 mm2 or more). Well done Banggood. 5/5. Thank you!

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