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RD Dual LED Display 4 bit DC 0-100V/1A/3A 0.28 Digital Ammeter Voltmeter Car voltage current meter 5 wire [4pcs/lot]

US $20.88 - 23.92
US $24.00 - 27.50 -13%

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Review by Cxxxm (NZ)
Very good, very happy A+ Thanks

Item specifics

  • Measuring Capacitance Range: NO
  • DIY Supplies: Electrical
  • Measuring Voltage Range: DC 0.0-99.9V
  • Brand Name: RD
  • Measuring Resistance Range: NO
  • Display Type: Digital Display
  • Measuring Current Range: DC 0-999.9mA-3.000A
  • Measuring Inductance Range: NO
  • Dimensions: 48 x 29 x 22 mm (L*W* H)
  • Model Number: va-4-100
  • Operating Mode: NO
  • Operating Temperature: -10 °c ~60°c
  • is_customized: Yes
  • voltage range: DC 0.0-99.9V
  • current range: DC 0-999.9mA-3.000A
Product Description


Bargains goods are going on , suprise for new year. only this time. Hurry up.






We are manufacturer.All our products are devised and produced by ourselves. So believe that our quality, price and service will definitely give you satisfaction!

Technical Parameters:

  • Weight:                                20g
  • Display color:                                  Red+Blue/red reed/red green
  • Display mode:                        Dual 0.28 LED digital 4 bit tube
  • update rate:                            About 200 ms/time
  • Physical size:                         48 x 29 x 26 mm (L*W* H)
  • Opening size:                       45 x 26 mm (L*W)
  • Supply voltage :                    3.5-28V
  • Lead wire length:                  14 cm(Five wires)
  • Measurement range:             DC 0.0-99.9V(voltage)    0-999.9mA-3.000A(current)
  • Operation temperature:       -10 degrees~65 degrees
  • Voltage measurement accuracy:          ± (0.5% + 2words)
  • Current measurement accuracy:        ± (0.3% + 2words)

Display description:

  • The above digital tube display voltage; there are three fixed display precision. The fourth bit is  sign bit, displaying 'U'. The measurement range is 0.0-99.9V; the minimum resolution is 100mV
  • The below digital tube display current; there are four fixed display precision; the measurement range is 0-999.9mA-3.000A. When the measuring current is below 1A, it display ***.*mA, the resolution is 0.1mA; When the measuring current is higher than 1A, it display *.***A, the resolution is 1mA


Instruction of wiring

  Red thin wire (VCC): Power input+ 3.5-28V (NOTE: If the measuring signal is lower than 28V and have abundant power supply, it can be used as power supply for the module [black wire and yellow wire are contacted together to use])

  Black thin wire(GND): Power input- Measurement signal - 3.5-28V

  Yellow thin wire (VIN): Measurement signal+ (0-99.9V)

  Red thick wire (I+): Current input+ (connect with the load negative)

  Black thin wire(I-): Current input- (in series in power supply negative)

Wiring instruction:

  Voltage current meter with isolated power supply

  Voltage current meter in the measurement system for power supply

  • System supply power-1


  • System supply power-2


Products picture display:










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5.0 / 5

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