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3pcs 0.28 Inch Two-wire 2.5-30V Digital Blue Display DC Voltmeter Adjustable Voltage Meter COD

  • Model: 1577864
  • Units in Stock: 999

Price:   $3.99

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                   1. The wiring of this voltmeter is simple. The conventional two wires are used, the red is connected to the positive, the black is connected to the negative, and the reverse connection is protected.2. Conventionally, no external working power supply is required, and the measuring voltage can be directly operated. The measuring voltage range is two-wire 2.50-30V, three-wire 100V.3. Wide voltage operation, red 2.50V low and safe pressure up to 40V, more than 40V may be damaged.4. When measuring voltages below 10V, two digits are displayed after the decimal point; when measuring voltages above 10V, one digit is displayed after the decimal point.
                   

                  The measured voltage <40V, higher than 40V may be damaged.
                  Test accuracy±1%. >10V error ±0.1V; <10V ±0.03V
                  Input resistance>50KΩ
                  Working current<30mA
                  Refresh rateAbout 100mS once
                  Display specificationThree digit 0.28 LED digital tubes
                  Lead lengthDefault 20cm
                  Dimensions30 x 11.5 x 9 mm
                  Hole SizePitch: 26mm Aperture: 2.4mm
                  Net weight4g
                  Operating temperature-10 to +80 °C
                  Working humidity10 to 80%
                  Working pressure80 to 106 kPa

                  5 x Voltage meter