DC power is needed to power the meter.
DC positive and negative poles should be connected correctly!
Load and Shunt must be used for the meter to read Amps.
Shunt must be connnected between the Negative terminal and Load.
Product Name: 3 1/2 Blue LED Amp & Volt Combo meter
Power Supply: DC6-24V
Running current: <80mA
Type: 7 segment Blue LED
Over-range indication: "1" or "-1"
Sampling rate: 2-3 readings per second
Operational temperature: 0?+50 degree
Relative humidity: ?85%RH
Accuracy ± 0.2% FS
Scaling position: AUTO
Zero setting: AUTO
Size of mounting hole: 7.65cm×3.92cm
Meter Weight: 40g
1 x Blue LED digital panel meter.
1 x 5 pin pig tail connection cables.
1 x Shunt (200A 75mv)