DC Voltmeter & Ammeter with OELD Display

The DC Voltmeter & Ammeter with OLED Display is a compact and accurate meter designed to measure voltage and current simultaneously in DC circuits. It supports three current ranges (3A, 10A, 20A) and operates between 4V and 20V. The OLED screen offers clear readings with high precision, making it ideal for battery monitoring, power supply testing, and DIY electronics projects.

Specifications of DC Voltmeter & Ammeter with OLED Display

• Operating Voltage: 4V ~ 20V
• Operating Current: < 20mA
• Voltage Measurement Range: 0V ~ 100V
• Voltage Resolution: 0.1V
• Voltage Accuracy: ±0.3% (2 digits)
• Current Measurement Range: 3A / 10A / 20A (optional)
• Current Resolution: 0.01A
• Current Accuracy: ±0.8% (3 digits)
• Operating Temperature: -10°C ~ 65°C
• Operating Humidity: 10% ~ 80%
• Dimensions: 45x27x17mm
• Mounting Hole Size: 45x26mm

How to use of DC Voltmeter & Ammeter with OLED Display

Pinout:

• Thick Red Line (VCC): Power supply input positive
• Thick Black Line (GND): Power supply input negative
• Thin Yellow Line (V+): Voltage measuring positive
• Thin Red Line (I+): Current measuring positive
• Thin Black Line: Current or voltage measuring negative

Datasheet of DC Voltmeter & Ammeter with OLED Display

Datasheet: Not available