0.28 Inch Dual Display Red Blue LED Panel Voltmeter 4.5-30V Digital Volt Meter Ammeter 1-100A

Working current: <60mA
Display mode:0.28" LED double colors(Red,Blue)
Dimension:48x29x21mm
Installation hole size:45.5×26.5mm
Measured rate:≥500mS per time
Measuring accuracy: 1%
Minimum working voltage: +4.5V
Max working voltage: +30V
Operating temperature: -10℃ to +65℃
Operating humidity:10% to 80%
Operating pressure:80kPa to 106kPa
Testing voltage:0-100V
Supply voltage range:DC 4.5-30V
Wire lead length:20cm
Current range:1A,2A,5A,10A,50A,100A

Onboard Wire Instructions:

Thin Red Wire (VCC): positive pole of power supply input (3.5-30V)
(Note: if the measuring signal is less than 30V and the power is adequate, can be the power supply of module)
Thin Black Wire (GND): negative pole of power supply input (3.5-30V, common ground with measuring signal)
Thick Red Wire (VIN): positive pole of measuring signal input (0-100V)
Thick Green Wire (I+): positive pole of current input (series connect on the power supply cathode)
Thick Black Wire (I-): negative pole of current input (series connect on the power supply cathode)

Package included:

1 x Dual LED panel ampere voltage meter

Direct power supply wiring: https://files.banggood.com/2018/04/Direct-power-supply.jpg
Independent power supply wiring: https://files.banggood.com/2018/04/Independent-power-supply.jpg