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Size: 5 x 3 x 1.8 cm
Digital display color: blue (voltage)， red (current)
Supply voltage: DC 4.5-30V
Measuring voltage: 0-100V
Measuring current: 10A
Wiring way:
Thin red wire: power supply input anode (DC 4.5-30V)
Thin black wire: power supply input cathode (DC 4.5-30V)
Thick red wire: measure positive voltage input (voltage displayed between thick black wire and it is the voltage displayed on meter head.)
Thick black: measure current flow (between thick black wire and thin black wire is communal land， it is connected.) (measure negative voltage input)
Thick yellow wire: measure current inflow (connect with load cathode and the load positive pole connects with thick red wire.)

++ Package included ++
1 x Volt & Amp Panel Meter

2 x Connecting wire