A measuring instrument for the resistance of wires.
The most economical and reliable way is to use both arms bridge, QJ44, QJ57 can.
The low resistance measuring instrument can be type KC2511 and TH2511. YD2512 resistance measurement range 1 ohms ~1.9999M resistance, measurement accuracy 0.05%, test current 1 A-1A, test speed is 5 times / sec, fast 10 times / sec
It is essential to use such an electrical measurement technique, such as an electric bridge or a micro impedance meter. It requires extreme strict control of wire diameter to compare.
