5pcs nMini Digital Voltmeter Ammeter DC 100V 10A Voltmeter Current Meter Tester Blue+Red Dual LED Di

Specifications: ? Voltage measurement range: 0.0V-100V Current test range: 0-999mA, 0-10A Power supply range: DC4-30.0V Voltage error: &pm;0.1% Current error: &pm;1% Working current: < 20mA Refresh rate: about 300mS once Display mode: double three-digit 0.28 LED digital tube Display color: red + red, red + blue. Optional Lead length: 15cm Dimensions: 48 x 29 x 22 mm Mounting hole: 46 x 27 mm Working temperature: -10 ?￣ C ~ 65 ?￣ C ? Package Included: ? 5 x Mini Digital Voltmeter Ammeter