Stayhome 1pcs High Accuracy 4 Digits Volt Amp Meter DC 0-30V 5A VA Multimeter Current Tester Gauge Voltmeter Ammeter Digital Blue Red LED

Description: Power supply: DC 3.8-30V Power consumption: Refresh rate: about 3 times/s Voltage range: 30V Current range: 5A Current internal resistance: 75mV shunt Test accuracy: ± 0.2% + 2 words Current resolution: 00.00-30.00 (when within the overload capacity, the display still can show but please don't over the specified time. we suggest the average current be about half of the range) Display color: red voltage + blue current Hole size: 45.5mm * 26mm Dimensions: 48mm * 29mm * 20mm With reverse polarity protection, but the input still can't over 30V when connecting reversely. The meter can measure positive voltage and positive/negative current, the decimal point will flash when measuring negative current, and it will automatically move when less than 1A, unit is mA. Current sampling uses an independent AD conversion chip, more stable and accurate. Very suitable for monitoring battery.