The 4.5V to 30V Digital Voltmeter is a compact and efficient tool designed for measuring DC voltage within this range, making it highly suitable for a variety of applications. Here’s a detailed description:
Working Principle:
This voltmeter operates by directly connecting to a DC power source, where it measures the voltage across its input terminals. It features a digital display that provides a clear and precise readout of the voltage level. The voltmeter is designed to be simple to use, with only two connection wires: one for the positive terminal and one for the negative terminal.
Key Features:
Voltage Range: Measures DC voltage from 4.5V to 30V, making it versatile for different power sources.
Display: Features a 0.36-inch digital display that shows the voltage reading clearly and accurately.
Accuracy: Provides precise measurements with an accuracy of ±1%, ensuring reliable data.
Power Consumption: Low power consumption, typically less than 15mA, allowing for continuous monitoring without significant battery drain.
Reverse Polarity Protection: Includes built-in protection against reverse polarity, preventing damage if the connections are accidentally reversed.
Compact Design: Small and lightweight, making it easy to install in tight spaces or portable devices.
Technical Specifications:
Operating Voltage: 4.5V to 30V DC
Display Size: 0.36-inch LED display
Measurement Accuracy: ±1%
Resolution: 0.1V
Power Consumption: < 15mA
Dimensions: Typically around 23mm x 15mm x 10mm
Wiring: Red wire (positive), black wire (negative)
Applications:
Battery Monitoring: Ideal for checking the voltage of vehicle batteries, solar panels, and other DC power sources to ensure they are within the correct operating range.
DIY Electronics Projects: Perfect for hobbyists and makers who need a reliable voltage measurement tool for their electronic projects.
Home Automation: Useful for monitoring power supplies and ensuring proper voltage levels in home automation systems.
Power Supplies: Monitoring the output voltage of DC power supplies to verify stability and accuracy.
RC Vehicles: Check the voltage levels of batteries used in remote-controlled cars, planes, and boats.
Advantages:
High Precision: Provides accurate voltage measurements, essential for ensuring the correct operation of electronic devices.
User-Friendly: Easy to connect and read, with a clear digital display and simple wiring.
Durable Construction: Built with quality components to ensure long-lasting performance.
Versatile Use: Suitable for a wide range of applications, from automotive to home electronics.
Safety Features: Includes reverse polarity protection, enhancing safety during use.
Limitations:
Display Size: The small 0.36-inch display may be hard to read from a distance, making it more suitable for close-up inspection.
Voltage Range: Limited to measuring voltages within the 4.5V to 30V range, which may not cover all possible applications.
Environmental Factors: Performance can be affected by extreme temperatures and humidity, requiring careful installation in controlled environments.
The 4.5V to 30V Digital Voltmeter is an excellent tool for anyone needing to monitor DC voltage levels accurately and reliably. Its combination of high precision, ease of use, and versatile applications makes it a valuable addition to any toolkit for hobbyists, engineers, and professionals alike.





There are no reviews yet.