Mini Digital Voltmeter Module 0.28" Display, DC 2.5V–30V Voltage Tester, 3-Wire Panel Meter, Small Voltage Display for DIY Electronics

This mini digital voltmeter module is a compact, reliable way to monitor DC voltage in your DIY electronics projects. With a bright 0.28 inch 3-digit LED display, it provides an easy-to-read voltage value at a glance, making it ideal for battery packs, DC adapters, small power supplies, and embedded electronics where space is limited.

The module uses a practical 3-wire connection, allowing you to power the display while measuring the target voltage line. This makes it suitable for many common setups such as monitoring a battery output, checking a regulated rail inside a project box, or adding a simple voltage readout to a bench or portable power system. The small PCB includes a mounting hole to help you secure it inside an enclosure or behind a panel cutout.

Whether you are building Arduino-compatible projects, testing DC circuits, or adding a voltage indicator to a custom device, this module offers a fast and convenient way to verify voltage levels and spot drops or power issues during troubleshooting.

Specifications:
- Product Type: Mini digital DC voltmeter module (panel meter style)
- Display Size: 0.28 inch, 3-digit LED
- Measurement Voltage Range: DC 2.5V to 30V
- Wiring: 3-wire (typical colors: red/black/yellow; may vary by batch)
- Measurement Type: DC voltage only
- Mounting: PCB with mounting hole for secure installation
- Applications: Battery monitoring, DC power supplies, DIY electronics, robotics, RC, test benches

Included Components: 1x Mini digital voltmeter module (3-wire)