0.28-Inch 3.5–30V Two-Wire DC Voltmeter – Red LED Display
₵38.00
The 0.28-inch Two-Wire DC Voltmeter is a compact digital voltage display module designed for quick and easy real-time monitoring of DC power systems.
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The 0.28-inch Two-Wire DC Voltmeter is a compact digital voltage display module designed for quick and easy real-time monitoring of DC power systems. With a wide voltage range of 3.5V to 30V and bright red LED display, it’s perfect for battery voltage monitoring, DIY electronics, and power supply diagnostics.
Its two-wire design allows for effortless integration—no need for a separate power supply. Just connect the voltmeter directly across the voltage source you want to measure, and it’s ready to go.
Key Features
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Wide Voltage Range: Accurately measures DC voltages from 3.5V to 30V
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Compact Display: 0.28-inch bright red 3-digit LED for clear visibility
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Two-Wire Design: No separate power source needed—measures and powers from the same connection
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Easy Installation: Compact size fits easily into project panels or dashboards
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Low Power Consumption: Minimal drain on the system being monitored
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Reverse Polarity Protection: Prevents damage due to incorrect wiring
Technical Specifications
| Parameter | Value |
|---|---|
| Display Type | 0.28″ 3-digit Red LED |
| Operating Voltage Range | DC 3.5V – 30V |
| Input Impedance | ≥100kΩ |
| Measurement Accuracy | ±1% |
| Refresh Rate | Approx. 500ms |
| Current Consumption | < 20mA |
| Wiring Type | 2-wire (power & measurement) |
| Dimensions | Approx. 30mm × 11mm × 9mm |
Package Includes
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1 × 0.28-Inch Red LED DC Voltmeter (3.5V–30V, Two-Wire)
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