🔹 0.28 Inch Mini Digital Volt Meter (2.5V–40V DC)
This 0.28-inch mini digital voltmeter is a compact and reliable voltage display module perfect for battery monitoring, power supply testing, and DIY electronic projects. It features a bright 3-digit LED display for clear real-time voltage readings, even in low-light environments.
✅ Specifications:
Display Size: 0.28 inch
Display Type: 3-Digit LED (Red/Blue/Green – random color depending on stock)
Input Voltage Range: 2.5V to 40V DC
Operating Voltage: Self-powered from measured voltage
Resolution: 0.1V
Accuracy: ±1%
Current Consumption: <20mA
Dimensions: Approx. 30mm × 12mm × 10mm
Wire Length: ~15cm
Polarity Protection: Yes (reverse polarity protection)
📦 Applications:
✔️ Battery level monitoring
✔️ Power supply voltage display
✔️ RC models and chargers
✔️ DIY electronics and Arduino projects
💡 Note:
Do not exceed 40V DC to prevent damage.
Connect the red wire to positive (+) and black wire to negative (–).



















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