SMAKN 3 Digits 0.56" 3 Wire Dc 0-100v Blue Led Digital Voltmeter Voltage Display Module with Reverse Protection

Price: $6.99
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Product Features

Range: DC 0-99.9V (need extra Power Supply DC 3-30V Power Supply: DC 3-30V Display: three 0.56" LED digital tube Measuring accuracy: 1% (+ / - 1 digit) Display color:BLUE