4.5-30V two-wire; motorcycle battery car electric car vehicles; digital display / digital voltmeter head For Arduino The voltmeter basic performance parameters are as follows: Opening size: 45.5mm * 26.5mm Dimensions: 48mm * 29mm * 21mm Range: DC4.5-30V 2 Line Access Display: three 0.56 LED digital tube Display color: red Refresh rate: about 500ms / Input voltage: DC voltage (<2-fold range) Measurement accuracy: 1% (+ / - 1 words)
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