Mini DC Voltmeter 3.5–30V LED

The Mini DC Digital Voltage Meter is a compact panel-mount instrument designed for real-time DC voltage monitoring in electronic and power systems. It features a bright three-digit LED display and operates directly from the measured voltage source, eliminating the need for an external power supply. With a measurement range of 3.5V to 30V DC, fast refresh rates, and compact dimensions, it is suitable for battery packs, power supplies, DIY electronics, and embedded monitoring applications. Its simple two-wire connection enables quick and reliable installation in space-constrained projects.

Features

Real-time DC voltage monitoring

No external power supply required

Three-digit LED display

Compact panel-mount design

Operates directly from measured voltage

Measurement range from 3.5V to 30V

Fast 500ms refresh rate

Low-profile installation

High visibility digital readout

Simple two-wire connection

Suitable for battery monitoring

Ideal for power supply projects

Lightweight compact construction

Reliable voltage measurement

Easy integration into electronic systems

Specifications

- Display Type: Three 0.28-inch LED Digital Tubes

- Measurement Range: DC 3.5–30

- Operating Voltage: DC 3.5–30V

- Minimum Input Voltage: 3.5V

- Maximum Input Voltage: 30V

- Measurement Accuracy: ±(1% + 2 Digits)

- Refresh Rate: Approximately 500ms

- Power Supply Method: Directly Powered by Measured Voltage

- Connection Type: Two-Wire

- Lead Wire Length: 100 mm

- Display Color: Red LED

- Product Dimensions: 30 × 12 × 8.5 mm

- Mounting Hole Distance: 26 mm

- Operating Temperature: -10°C to 65°C

- Installation Type: Panel Mount

- Weight: Lightweight Design

Links

- 2020 Side Mount for 0.28 inch Mini Digital Voltmeter Voltage Tester Meter

Tutorials

2 Wires 0.28-inch Digital Voltmeter