2. The resistor is plug-in, not patch. The distance between the two pins of the patch is small, moisture makes the resistance value smaller, and the stability is poor 1. The resistor board uses 0.1% for resistor 3. Instead of using a pull-, -plated pin is used. The contact resistance of the pull- is too large, which affects the accuracy of small resistance values. The contact resistance of the gold-plated pin is more than half smaller than that of the pull-, Manufacturer: PokFhgur