2in1 Red Green LED Digital Voltmeter Ammeter DC0~ 33.0V/1A Dual Display Voltage Ampere Meter DC 12V 24V Volt Current Meter

2in1 Red Green LED Digital Voltmeter Ammeter DC0~ 33.0V/1A Dual Display Voltage Ampere Meter DC 12V 24V Volt Current Meter

Shared by: Karl Bonsale from ALIEXPRESS
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  • Reference Price:
    US $9.31 / piece
  • Unit Type:
    piece
  • Display Color:
    Red + Green
  • Package Size:
    15cm x 10cm x 8cm (5.91in x 3.94in x 3.15in)
  • Accuracy Class:
    ± 1% +2 words
  • Operating Temperature:
    -10°c ~ +65°c
  • Measuring Range:
    DC 0~33.0V
  • Package weight:
    0.060kg (0.13lb.)
  • Accuracy:
    ± 1% +2 words
  • Dimensions:
    48 x 29 x 21mm
  • Working Supply voltage:
    DC 3.5~30V
  • Model Number:
    Voltage Current Monitor
  • Measure Current Range:
    DC 0~999mA
  • Measure Voltage Range:
    DC 0~33.0V
  • Display Type:
    Digital Only
  • Brand Name:
    2in1 Voltmeter Ammeter
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Description

2in1 Red Green LED Digital Voltmeter Ammeter DC0~ 33.0V/1A Dual Display Voltage Ampere Meter DC 12V 24V Volt Current Meter

Performance parameters:

Working Supply voltage: DC 3.5~30V Measure Voltage Range: DC 0~33.0V Resolution: Within 100V: 0.1V Measure Current Range: DC 0~999mA Accuracy: 1% +2 words Refresh rate: about 500ms / times Display: three 0.28-inch dual LED digital tube Display Color: Red + Green Operating Temperature:-10c ~ +65c Opening size: 45 * 26mm Dimensions: 48 * 29 * 21mm

Wiring:

The thin red wire (VCC): Power supply input + (3.5-30V); The thin black wire (GND): Power supply input - (3.5-30V) common ground design; The thin yellow wire (VIN): Measuring input+ (0-33.0V) The thick red wire (I +): Current input + ( must be connected to the load) The thick black line (I-): Current input - ( must be connected to the power supply in series)

Calibration instruction:

Error phenomenon:Because of the some eclectic parts ageing and influenced by the temperature sometimes when measuring the small current the error of some meter become big or sometimes some meter don\'t show zero without load. Solution:When the meter is off the power please short circuit A and B (connect A and B). Then make the meter have the electricity the meter will automatically calibrated to zero. When the automatic calibration is over please disconnect A and B. After this that is ok. Error phenomenon :Because of the some eclectic parts ageing and influenced by the temperature sometimes when measuring big current the error of some meter become big. Solution:let the meter show about half of the range (for example: range 0-10A let meter show about 5A). At the meaning time you adjust R7 until the meter show the value is same to the value the more digit meter show.

Package include:

1 x 2in1 Digital Voltmeter Ammeter

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