ITEM NAME:DC 20A 4.5~30V LCD Digital Watt Current Power Voltage Meter Ammeter Voltmeter Product Description Description: 100% Brand new and high quality Display: 0.56' LED digital Range DC: 0--20 A. Display color: Red Operating voltage: DC 4.5 ~ 30V Minimum resolution (V): 0.01V Refresh rate: ≠¥500ms / times Measure accuracy:  ± (2% + 2 word) Minimum resolution (A): 0.01A Operating Current: Measure current:
