Description

Voltmeter Module with 7-Segment 0.28 inch 0-100V (3 Wires) – Product Description

Introduction

The Voltmeter Module with 7-Segment 0.28 inch display (0–100V, 3 Wires) is a compact, accurate, and easy-to-use voltage measurement tool designed for electronics projects, DIY applications, and monitoring DC power systems. With its bright 7-segment LED display, this voltmeter provides a clear and precise voltage reading, making it an essential component for engineers, students, and hobbyists.

Unlike bulky traditional voltmeters, this mini digital voltmeter module is designed for easy panel mounting and simple wiring. It offers wide voltage measurement capability (0–100V DC) and is ideal for real-time monitoring of battery levels, power supplies, and other DC circuits.

Key Features

• Wide Measurement Range: Accurately measures DC voltages from 0V to 100V.

• Compact Display Size: Features a small 0.28 inch 7-segment LED display for clear readings even in low-light conditions.

• Three-Wire Design: Separate power and measurement leads for more accurate readings.

• High Precision: Provides accurate digital readings with minimal error.

• Easy to Install: Simple wiring and compact PCB design suitable for integration into panels or DIY enclosures.

• Low Power Consumption: Efficient operation without draining power sources.

• Bright LED Display: Available in multiple colors (commonly red, green, or blue) for better visibility.

• Durable Build: Made with quality components for long-term use in electronics projects.

Technical Specifications

• Module Type: Digital DC Voltmeter

• Display Type: 7-segment LED

• Display Size: 0.28 inch

• Measurement Range: 0V – 100V DC

• Input Type: 3-wire system (VCC, GND, Voltage Measurement Input)

• Operating Voltage: Typically DC 4.5V – 30V (for powering the display)

• Accuracy: ±0.1V (varies slightly with input voltage)

• Refresh Speed: About 200 ms/time

• Working Current: ≤ 20mA

• Module Size: Compact, easy to embed in projects

Applications

The Voltmeter Module with 0.28 inch LED display is versatile and can be used in various projects and applications, such as:

1. Battery Voltage Monitoring – Keep track of battery levels in DIY electronics, solar systems, or portable power supplies.

2. Power Supply Measurement – Measure DC voltage output from regulated or unregulated power supplies.

3. DIY Electronics Projects – A perfect fit for hobby projects requiring real-time voltage monitoring.

4. Automotive Applications – Monitor car or motorcycle battery voltage with ease.

5. Solar and Renewable Energy Systems – Useful for monitoring solar panel outputs and battery storage systems.

6. Embedded Systems – Integrate into enclosures, dashboards, or control panels for professional-grade monitoring.

Advantages of This Voltmeter Module

• Compact & Lightweight: Small display size makes it suitable for portable projects.

• Clear Visibility: Bright LED 7-segment display ensures easy reading even in low-light environments.

• Easy Wiring: Simple three-wire design allows quick installation.

• Wide Voltage Range: Suitable for multiple DC measurement needs (0–100V).

• Reliable & Durable: Built with high-quality components for consistent performance.

Why Choose This Module?

Unlike analog voltmeters or larger digital multimeters, the 0.28 inch 3-Wire Voltmeter Module is designed specifically for embedded electronics and DIY applications. It provides a perfect balance of accuracy, convenience, and size. Whether you’re a student working on a school project, a hobbyist creating DIY circuits, or a professional building control systems, this module saves time and effort by giving you instant voltage readings.

It is also highly affordable, making it one of the most cost-effective solutions for continuous voltage monitoring.

Conclusion

The Voltmeter Module with 7-Segment 0.28 inch Display (0–100V, 3 Wires) is a compact, reliable, and precise digital voltmeter for monitoring DC voltage in a wide range of applications. Its easy installation, bright display, and accurate measurement capabilities make it an essential tool for anyone working with electronics, batteries, or power systems.

👉 Order your Voltmeter Module today and upgrade your electronics projects with accurate, real-time voltage monitoring.

Data Sheet