Three 3 digits voltmeter has 3 wire connections. Its operating power
is separated from the mearsurement input wires so it has a wide measuring
range from 0 to 30 volt.
Supply voltage: DC 4.5V ~ 30V max.
Measuring range: DC 0V ~ 30V max.
Working current: <30mA
Input impedance: 100K up
Display: 0.36 inch LED, Red color
Dimensions: 35 × 23 × 20mm
Price: $2.80