0.28inch 0-100V Three Wire DC Voltmeter Red

  • Ultra-compact design with 0.28″ bright red LED display
  • Measures DC voltage from 0V to 100V
  • Auto decimal point adjustment for improved readability
  • 3-wire connection: simple setup for single or dual power sources
  • Reverse polarity protection to prevent damage
  • Compatible with 5V–24V working voltage
  • Ideal for battery monitoring, automotive diagnostics, and DIY electronics
SKU: 7-SEG-VOLTAMETER

65,00 EGP

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Description

0.28″ 0–100V Three-Wire DC Digital Voltmeter – Red LED Display

This compact digital voltmeter with a bright 0.28-inch red LED display is designed to provide accurate and real-time voltage readings for a wide range of DC applications. With a simple three-wire connection, setup is quick and straightforward—ideal for hobbyists, automotive diagnostics, DIY electronics, and more.

Thanks to its built-in reverse polarity protection, accidental wiring mistakes won’t damage the device. The voltmeter automatically adjusts the decimal point for better readability:

  • Below 10V: displays two decimal places (e.g., 9.58V)

  • Above 10V: displays one decimal place (e.g., 48.7V)

It supports dual-source measurements, meaning it can be powered by one source while measuring another, as long as both share a common ground.

With a measurement range of 0V to 100V, this voltmeter is perfect for monitoring battery levels (in cars, motorcycles, etc.), power supplies, solar systems, or any low-voltage DC setup. For optimal safety and longevity, avoid continuous use above 30V without proper filtering, as sudden voltage spikes can cause permanent damage.


Wiring Guide:

  • Red Wire: +V (Power Supply Positive)

  • Black Wire: GND (Common Ground for Power Supply and Measured Source)

  • Yellow/White Wire: +V (Voltage Source to Measure)

Case 1: If measuring the same source that powers the voltmeter, connect all three wires to the same source.
Case 2: If measuring another voltage source, ensure both sources share a common ground.

⚠️ Note: Display weight and dimensions may vary ±2%.


Features:

  • Ultra-compact and lightweight design

  • Easy 3-wire installation

  • Wide input voltage range: 0V to 100V DC

  • Working voltage: 5V to 24V DC

  • Auto decimal point adjustment for enhanced accuracy

  • Bright red LED for clear visibility

  • Reverse polarity protection

  • Ideal for automotive, DIY electronics, and battery monitoring


Package Includes:

  • 1 x 0.28″ 0–100V Three-Wire DC Digital Voltmeter – Red LED

Specification

General

Weight Weight 0,0000 g

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