Build your bench power supply or variable power supply using this volmeter Ammeter. Check voltage and current consued by your device using this gadget.
it is unsuitable to use this meter to test current less than 1A ,if you use it to test ampere below 1A,it will have big error. The maximum input voltage can not exceed 30V, otherwise there is the danger of burning
Mini Digital Voltmeter Ammeter DC 100V 10A
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